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    <loc>https://shop.waltron.net/products/3-5m-kcl-reference-electrode-refill-kit</loc>
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      <image:title>3.5M KCl Reference Electrode Refill Kit</image:title>
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    <loc>https://shop.waltron.net/products/hardness-reagent-2-buffer-solution-2l</loc>
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    <loc>https://shop.waltron.net/products/hardness-calibration-standard-50ppb-2l</loc>
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  <url>
    <loc>https://shop.waltron.net/products/dissolved-iron-reagent-1-1l</loc>
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    <changefreq>daily</changefreq>
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    <loc>https://shop.waltron.net/products/copper-calibration-standard-50ppb-2l</loc>
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    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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    <loc>https://shop.waltron.net/products/sodium-low-calibration-standard-100ppb-5-gal-20l-cube</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Sodium Low Calibration Standard, 100ppb, 5 Gal/20L Cube</image:title>
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    <loc>https://shop.waltron.net/products/sodium-high-calibration-standard-1000ppb-5-gal-20l-cube</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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    <loc>https://shop.waltron.net/products/3-5-kcl-reference-electrode-filling-solution-2-oz</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://shop.waltron.net/products/silica-reagent-1-sulfuric-molybdate-2-5l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Silica Reagent #1, Sulfuric/Molybdate, 2.5L (Special Handling)</image:title>
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    <loc>https://shop.waltron.net/products/silica-reagent-2-oxalic-acid-2-5l-w1234-097e</loc>
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    <loc>https://shop.waltron.net/products/copper-reagent-3-color-reagent-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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  <url>
    <loc>https://shop.waltron.net/products/cation-resin-pre-rinsed-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Cation Resin - Pre-Rinsed 2L</image:title>
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    <loc>https://shop.waltron.net/products/phosphate-blue-reagent-1-molybdate-sulfuric-acid-reagent-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-103-PhosphateBlueReagent_1_Molybdate_SulfuricAcidReagent_2L.png?v=1752180551</image:loc>
      <image:title>Phosphate Blue Reagent #1, Molybdate/Sulfuric Acid Reagent, 2L (Special Handling)</image:title>
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    <loc>https://shop.waltron.net/products/phosphate-blue-reagent-2-reducing-reagent-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/IMG_0368.jpg?v=1504116912</image:loc>
      <image:title>Phosphate Blue Reagent #2, Reducing Reagent, 2L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/ammonium-hydroxide-reagent-grade-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Ammonium Hydroxide, Reagent Grade, 1L (Special Handling)</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/silica-calibration-standard-100ppm-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-W566A-SilicaCalibrationStandard_100ppm_1L.png?v=1752075846</image:loc>
      <image:title>Silica Calibration Standard, 100ppm, 1L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/phosphate-calibration-standard-100ppm-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/PhosphateCalibrationStandard_100ppm_1L.png?v=1752074122</image:loc>
      <image:title>Phosphate Calibration Standard, 100ppm, 1L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/silica-calibration-standard-200ppb-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-566-SilicaCalibrationStandard_200ppb_1L.png?v=1752075733</image:loc>
      <image:title>Silica Calibration Standard, 200ppb, 1L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/silica-calibration-standard-2ppm-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_2ppm_1L.png?v=1752075498</image:loc>
      <image:title>Silica Calibration Standard, 2ppm, 1L</image:title>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/dissolved-iron-standard-50ppb-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/DissolvedIronCalibrationStandard_50ppb_1L.png?v=1752075403</image:loc>
      <image:title>Dissolved Iron Calibration Standard, 50ppb, 1L</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://shop.waltron.net/products/phosphate-calibration-standard-1ppm-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Phosphate Calibration Standard, 1ppm, 1L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/hardness-reagent-1-hydrochloric-acid-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-091-HardnessReagent_1_HydrochloricAcid_2L.png?v=1752089640</image:loc>
      <image:title>Hardness Reagent #1, Hydrochloric Acid, 2L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/copper-calibration-standard-1-5ppm-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/CopperCalibrationStandard_1.5ppm_2L.png?v=1752075299</image:loc>
      <image:title>Copper Calibration Standard, 1.5ppm, 2L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/copper-calibration-standard-25ppb-2l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:title>Copper Calibration Standard, 25ppb, 2L</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/silica-calibration-standard-75ppm-2-5l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_75ppm_2.5L.png?v=1752075059</image:loc>
      <image:title>Silica Calibration Standard, 75ppm, 2.5L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/silica-calibration-standard-150ppm-2-5l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/SilicaCalibrationStandard_150ppm_2.5L.png?v=1752074863</image:loc>
      <image:title>Silica Calibration Standard, 150ppm, 2.5L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/hydrazine-cell</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/H3010-165-HydrazineCell.png?v=1752089245</image:loc>
      <image:title>Hydrazine Cell</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/oxygen-sensor-kit</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/OxygenSensorKit_K3010-161A_WaltronDO.png?v=1752087413</image:loc>
      <image:title>Oxygen Sensor Kit, K3010-161A, Waltron DO</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/dissolved-oxygen-sensor-full-body-complete</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/DissolvedOxygenSensor_K3010-200_FullBody_Complete.png?v=1752087487</image:loc>
      <image:title>Dissolved Oxygen Sensor, K3010-200, Full Body, Complete</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/3-5m-reference-electrode-w-bnc-connector</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-171B-3.5MReferenceElectrodew_BNCConnector.png?v=1752085246</image:loc>
      <image:title>3.5M Reference Electrode w/ BNC Connector</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/refillable-reference-electrode-with-side-arm-84mm</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-174-RefillableReferenceElectrodeWithSideArm_84mm.png?v=1752085529</image:loc>
      <image:title>Refillable Reference Electrode With Side Arm, 84mm</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sodium-measuring-probe-80mm-pg-13-5</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N3010-177-SodiumMeasuringProbe.png?v=1752085734</image:loc>
      <image:title>Sodium Measuring Probe, 80mm, Pg 13.5</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/silica-bundle-w1234-096e-097e-098e-099e</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000-001-Silica_Bundle_-_W1234-096E_097E_098E_099E.png?v=1752086881</image:loc>
      <image:title>Silica Bundle - W1234-096E, 097E, 098E, 099E (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ldo-zero-point-calibration-kit</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K6000-101.-LDOZero-PointCalibrationKit.png?v=1752087585</image:loc>
      <image:title>LDO Zero-Point Calibration Kit (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/consumables-kit-3040-series-peristaltic-version</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W3040-001-ConsumablesKit.png?v=1752087179</image:loc>
      <image:title>Consumables Kit 3040 Series (Peristaltic Version)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-reagent-1-periodic-acid-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-046-EthyleneGlycolReagent_1_PeriodicAcid_1L.png?v=1752088564</image:loc>
      <image:title>Ethylene Glycol Reagent #1, Periodic Acid, 1L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-reagent-2-potassium-hydroxide-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-047-EthyleneGlycolReagent_2_PotassiumHydroxide_1L.png?v=1752088808</image:loc>
      <image:title>Ethylene Glycol Reagent #2, Potassium Hydroxide, 1L (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-reagent-3-potassium-persulfate-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-048-EthyleneGlycolReagent_3_PotassiumPersulfate_1L.png?v=1752088966</image:loc>
      <image:title>Ethylene Glycol Reagent #3, Potassium Persulfate, 1L (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sodalime-cartridge-filled</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-606A-SodalimeCartridge_Filled.png?v=1752088454</image:loc>
      <image:title>Sodalime Cartridge (Filled)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-reagent-4-set-w-dry-purpald-color-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-049L-Ethylene_Glycol_Reagent_4_Set_w_Dry_Purpald_Color_1L.png?v=1752089056</image:loc>
      <image:title>Ethylene Glycol Reagent #4, Set w/Dry, Purpald Color, 1L (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-standard-8-ppm-1-l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-0500NoBR.png?v=1752074752</image:loc>
      <image:title>Ethylene Glycol Calibration Standard, 8 ppm, 1L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/ethylene-glycol-standard-75-ppm-1l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/EthyleneGlycolCalibrationStandard_75ppm_1L-NoBR.png?v=1752074546</image:loc>
      <image:title>Ethylene Glycol Calibration Standard, 75 ppm, 1L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/special-handling</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/Speical.jpg?v=1521490303</image:loc>
      <image:title>Special Handling - hazardous shipping costs not included</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sodium-bundle-n1234-116-540-541-548-special-handling</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/2000-004-SODIUMBUNDLE-N1234-116_540_541_548_SPECIALHANDLING.png?v=1752085400</image:loc>
      <image:title>Sodium Bundle - N1234-116, 540, 541,  548 (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/iron-bundle-w1234-094-095</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000-003-Dissolved_Iron_Bundle_-_W1234-094_095.png?v=1752179990</image:loc>
      <image:title>Dissolved Iron Bundle - W1234-094, 095 (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/hardness-bundle-w1234-091-092-093-special-handling</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W2000002-Hardness_Bundle_-_W1234-091_092_093.png?v=1752090184</image:loc>
      <image:title>Hardness Bundle - W1234-091, 092, 093 (Special Handling)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sodium-spare-parts-kit</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/N3500-325_sm.jpg?v=1520544002</image:loc>
      <image:title>Sodium Spare Parts Kit - N3500-325 Series</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sensor-spot</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K5000-010-SensorSpotfor9065LDOAnalyzer.png?v=1752087655</image:loc>
      <image:title>Sensor Spot for 9065 LDO Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/kit-9060-retubing</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/K3500-356KIT_9060_61_62RE-TUBING.png?v=1752087737</image:loc>
      <image:title>KIT, 9060/61/62 RE-TUBING</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/kit-tubing-oring-9071</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-017_sm-KIT_TUBING_O_RING_9071.png?v=1752089432</image:loc>
      <image:title>KIT, TUBING/O&apos;RING, 9071</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/tubing-kit-complete-9033</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-050-TubingKit.png?v=1752085615</image:loc>
      <image:title>TUBING KIT, COMPLETE, 9033X</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/tubing-kit-complete-9032x</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/P2000-049-TUBINGKIT_COMPLETE_9032X_1f593e80-075e-472e-8965-9f69f88e6a28.png?v=1752085814</image:loc>
      <image:title>TUBING KIT, COMPLETE, 9032X</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/phosphate-calibration-standard-1-ppm-swan-compatible</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-709-Molybdo-VanadateReagentforSwanAMIPhosphateHL_2L.png?v=1752515056</image:loc>
      <image:title>Molybdo-Vanadate Reagent for Swan AMI Phosphate HL, 2L (Swan Compatible)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/silica-reagent-1-for-swan-ami-moybdate-swan-compatible</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-705-SilicaReagent_1Moybdate_forSwanAMISilicaorSilitraceanalyzer_2L.png?v=1752516878</image:loc>
      <image:title>Silica Reagent #1 Moybdate, for Swan AMI Silica analyzer, (Swan Compatible) 2L</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sulfuric-acid-reagent-1-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-706-SulfuricAcidReagent_2forSwanAMISilicaorSilitraceanalyzer_2Liter.png?v=1752516788</image:loc>
      <image:title>Sulfuric Acid Reagent #2 for Swan AMI Silica analyzer, 2 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/oxalic-acid-reagent-3-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-707-OxalicAcidReagent_3forSwanAMISilicaorSilitraceanalyzer_2Liter.png?v=1752516716</image:loc>
      <image:title>Oxalic Acid Reagent #3 for Swan AMI Silica analyzer, 2 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/oxalic-acid-reagent-3-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-703-OxalicAcidReagent_3forSwanCOPRASilicaanalyzer_10Liter.png?v=1752516632</image:loc>
      <image:title>Oxalic Acid Reagent #3 for Swan COPRA Silica analyzer, 10 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/molybdate-reagent-2-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-702-MolybdateReagent_2forSwanCOPRASilicaanalyzer_10Liter.png?v=1752516563</image:loc>
      <image:title>Molybdate Reagent #2 for Swan COPRA Silica analyzer, 10 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/sulfuric-acid-reagent-1-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-701-Sulfuric_Acid_Reagent_1_for_Swan_COPRA_Silica_analyzer_10_Liter.png?v=1752516385</image:loc>
      <image:title>Sulfuric Acid Reagent #1 for Swan COPRA Silica analyzer, 10 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/fas-reagent-4-for-swan-copra-silica-analyzer-10-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-704-FAS_Reagent_4_for_Swan_COPRA_Silica_analyzer_10_Liter.png?v=1752516229</image:loc>
      <image:title>FAS Reagent #4 for Swan COPRA Silica analyzer, 10 Liter</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/swan-ami-phosphate-hl-reagent-set</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/w1234-709-w1234-055-Reagent_Set_for_Swan_AMI_Phosphate_HL_-_One_Month_Supply_A-85.420.760.png?v=1752515976</image:loc>
      <image:title>Reagent Set for Swan AMI Phosphate HL  - One Month Supply (A-85.420.760)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/swan-ami-silica</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-810-Reagent_Set_for_Swan_AMI_Silica_and_Silitrace_A-85.420.560.png?v=1752515832</image:loc>
      <image:title>Reagent Set for Swan AMI Silica  (A-85.420.560)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/fas-reagent-4-for-swan-ami-silica-analyzer-2-liter</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/W1234-708-FAS_Reagent_4_for_Swan_AMI_Silica_or_Silitrace_analyzer_2_Liter.png?v=1752515486</image:loc>
      <image:title>FAS Reagent #4 for Swan AMI Silica analyzer, 2 Liter</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://shop.waltron.net/products/swan-copra-older-model-silica-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/A-85.420.130-Reagent_Set_for_Swan_COPRA_Silica_analyzer_compatible.png?v=1752515340</image:loc>
      <image:title>Reagent Set for Swan COPRA Silica analyzer compatible  (A-85.420.130)</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://shop.waltron.net/products/dipa-di-isopropylamine-99-4l</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/DIPA_4L_image_sm.jpg?v=1527781681</image:loc>
      <image:title>DIPA - DI-ISOPROPYLAMINE, 99% 4L</image:title>
      <image:caption></image:caption>
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  <url>
    <loc>https://shop.waltron.net/products/tubing</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/N106231-Tubing_PE_Lined_4.0mm_OD_x_2.5mm_ID_x_50m.png?v=1752515192</image:loc>
      <image:title>Tubing PE Lined 4.0mm OD x 2.5mm ID x 50m</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/oil-in-water-analyzer-waltron-2410</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/2410-Oil-in-Water-Analyzer.jpg?v=1603488207</image:loc>
      <image:title>Waltron 2410 Oil in Water Monitor</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3141-silica-analyzer-0-1000ppb</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3141SilicaAnalyzer.png?v=1752087302</image:loc>
      <image:title>Waltron 3141 Silica Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3042-phosphate-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3142_with_border.png?v=1741875559</image:loc>
      <image:title>Waltron 3142 Phosphate Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3144-hydrazine-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3144ColormetricHydrazineAnalyzer.png?v=1752089486</image:loc>
      <image:title>Waltron 3144 Colormetric Hydrazine Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3145-dissolved-copper-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3145DissolvedCopperAnalyzer.png?v=1752088307</image:loc>
      <image:title>Waltron 3145 Dissolved Copper Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3146-ammonia-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3146_with_border.png?v=1741877095</image:loc>
      <image:title>Waltron 3146 Ammonia Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3148-dissolved-iron-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3148DissolvedIronAnalyzer.png?v=1752180386</image:loc>
      <image:title>Waltron 3148 Dissolved Iron Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3149-ethylene-glycol-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3149Ethylene_PropyleneGlycolAnalyzer.png?v=1752089135</image:loc>
      <image:title>Waltron 3149 Ethylene/Propylene Glycol Analyzer</image:title>
      <image:caption></image:caption>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3151-hardness-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron3151CalciumHardnessAnalyzer.png?v=1752179613</image:loc>
      <image:title>Waltron 3151 Calcium Hardness Analyzer</image:title>
      <image:caption></image:caption>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3152-disinfectants-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3152_with_border.png?v=1741873047</image:loc>
      <image:title>Waltron 3152 Disinfectants Analyzer</image:title>
      <image:caption></image:caption>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-3154-filming-amines-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3154_with_border.png?v=1741722577</image:loc>
      <image:title>Waltron 3154 Filming Amines Analyzer</image:title>
      <image:caption></image:caption>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9131c-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9131C_SodiumAnalzyer-Compact.png?v=1752085926</image:loc>
      <image:title>Waltron 9131C Sodium Analyzer</image:title>
      <image:caption></image:caption>
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  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-90313x-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9033XNew.jpg?v=1655235931</image:loc>
      <image:title>Waltron 9033X Sodium Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9096-degas-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9096Analyzer.png?v=1599845987</image:loc>
      <image:title>Waltron 9096 Degas Conductivity Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9095-multi-conductivity-ph-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9095MultiConSingle_New.jpg?v=1599846453</image:loc>
      <image:title>Waltron 9095 Multi-Conductivity/pH Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-6051-total-hardness-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/6051EnclosurewithWaltronMembranecrop.png?v=1602792389</image:loc>
      <image:title>Waltron 6051 Total Hardness Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-4165p-portable-luminescent-dissolved-oxygen-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron_4165P_No_Background_1.png?v=1752076244</image:loc>
      <image:title>Waltron 4165P Ultra-Portable Luminescent Dissolved Oxygen Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9091-dissolved-hydrogen-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091.jpg?v=1602794962</image:loc>
      <image:title>Waltron 9091 Dissolved Hydrogen Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9092-free-chlorine-analyzer-with-ph-sensor</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9092ChlorineAnalyzer.jpg?v=1602795675</image:loc>
      <image:title>Waltron 9092 Free Chlorine Analyzer with pH Sensor</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9072-hydrazine-analyzer-potentiostatic</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091_f1e2f758-09c5-4560-8e0e-2cba5d8eb966.jpg?v=1602796066</image:loc>
      <image:title>Waltron 9072 Hydrazine Analyzer (Potentiostatic)</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-quoted-shipping</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9165-luminescent-dissolved-oxygen-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/Waltron9165Transmitter.png?v=1676666207</image:loc>
      <image:title>Waltron 9165 Luminescent Dissolved Oxygen Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9165s-luminescent-dissolved-oxygen-smart-sensor</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9165S_LDO_Smart_Sensor_Photo_213d0bf1-523c-4610-80bb-c064ee1f9f38.png?v=1752087807</image:loc>
      <image:title>Waltron 9165S Luminescent Dissolved Oxygen Smart Sensor</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-zero-oxygen-water-k6000-112</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Zerooxygen-200ml.png?v=1752071955</image:loc>
      <image:title>Waltron Zero Oxygen Water, 1 x 200ml Bottle</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/copy-of-waltron-zero-oxygen-water-4-pack-of-200ml-bottles</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Zero_Oxygen_4pack_-_no_br.png?v=1752071702</image:loc>
      <image:title>Waltron Zero Oxygen Water, 4 pack of 200ml Bottles</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-9135-sodium-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/Waltron9135SodiumAnalyzer.png?v=1752086000</image:loc>
      <image:title>Waltron 9135 Sodium Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4000-ph-ph-and-orp-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-Showing-pH.png?v=1744637329</image:loc>
      <image:title>Waltron 4000 PH pH/ORP Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4000-ec-electrodeless-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
      <image:title>Waltron 4000 EC Electrodeless Conductivity Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4000-sc-specfic-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
      <image:title>Waltron 4000 SC Specfic Conductivity Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4095-multi-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4095_Screen.jpg?v=1745444526</image:loc>
      <image:title>Waltron 4095 Multi-Conductivity Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4000-dc-degas-conductivity-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-DC_c4dc4c15-c4d0-4f79-bd71-3c2db367a38a.png?v=1744654100</image:loc>
      <image:title>Waltron 4000 DC Degas Conductivity Analyzer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/3040-series-wet-section-upgrade-kit</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3040_WS_JG2.png?v=1749657432</image:loc>
      <image:title>3040-Series Wet Section Upgrade Kit</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/waltron-4000-do-single-channel-ldo-analyzer-transmitter-only</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4000-Series-Transmitter-1024x1024-1.png?v=1744638452</image:loc>
      <image:title>Waltron 4000 MA Single Channel LDO Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/9010-sequencer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/9010-sequencer.webp?v=1746564538</image:loc>
      <image:title>9010 Sequencer</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/soft-sided-carrying-case</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/G-MIXERBAG-1212_FRONT_RT.jpg?v=1747143307</image:loc>
      <image:title>Soft-Sided Carrying Case</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/data-logging-usb-stick</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/easylog-data-logger-EL-USB-4-Straight.png?v=1747143670</image:loc>
      <image:title>Data-Logging USB Stick</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/replacement-oxygen-impermeable-hoses-4165p-ldo</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ReplacementHoses.png?v=1747146469</image:loc>
      <image:title>Replacement Oxygen Impermeable Hose- 4165P LDO - 1/4&quot;</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/replacement-oxygen-impermeable-hose-4165p-ldo-3-8</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/ReplacementHoses.png?v=1747146469</image:loc>
      <image:title>Replacement Oxygen Impermeable Hose- 4165P LDO - 3/8&quot;</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/4073-multi-sensor-analyzer</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/4073Multi-Sensor.jpg?v=1745446200</image:loc>
      <image:title>4073 Multi-Sensor Analyzer, Transmitter Only</image:title>
      <image:caption></image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://shop.waltron.net/products/conductivity-sensor-cmc15-cc-0-01-cm-with-flowcell-assembly</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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  <url>
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    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:title>Reducing Reagent #4 for Swan AMI Siltrace analyzer, 2 Liter</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/waltron-4000-sc-specific-conductivity-analyzer-high-voltage</loc>
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  <url>
    <loc>https://shop.waltron.net/products/waltron-9096-degas-conductivity-analyzer-copy</loc>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9096Analyzer.png?v=1599845987</image:loc>
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  <url>
    <loc>https://shop.waltron.net/products/waltron-3054-filming-amines-analyzer-new-with-wet-section-upgrade</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/files/3054-FilimingAmines.png?v=1766501728</image:loc>
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    <loc>https://shop.waltron.net/products/4010-002-in-line-cartridge-holder-with-single-channel-channel-flow-cell</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
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      <image:title>4010-002 In-Line Cartridge Holder with Single Channel Channel Flow-cell</image:title>
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  <url>
    <loc>https://shop.waltron.net/products/waltron-9091-dissolved-hydrogen-analyzer-copy</loc>
    <lastmod>2026-06-09T15:55:41-04:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/2219/5469/products/9091C.jpg?v=1602794962</image:loc>
      <image:title>Waltron 9091C Compact Dissolved Hydrogen Analyzer</image:title>
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