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      API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, 2.5 Oz.
      4.7
      ·
      38
      4.7
      38 Ratings
      API GH & KH TEST KIT Freshwater A…
      A
      Amazon.com
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      API GH & KH General & Carbonate Hardness Freshwater Aquarium Test Kit
      4.7
      ·
      38
      4.7
      38 Ratings
      API GH & KH General & Carbonate H…
      C
      Chewy.com
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      Aquarium Pharmaceuticals Freshwater Gh & Kh (Hardness) Test Kitl8
      5
      ·
      1
      Aquarium Pharmaceuticals Freshwat…
      A
      Amazon
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      Fluval KH/GH Test Kit For Aquarium Water, Freshwater & Saltwater Fish Tank Test
      3.8
      ·
      42
      3.8
      42 Ratings
      Fluval KH/GH Test Kit For Aquarium …
      A
      Amazon
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      API GH/KH Aquarium Test Kit Fish Tank General And Carbonate Hardness EXP 2026 317163010587 | Ebay
      API GH/KH Aquarium Test Kit Fish T…
      Y
      Your Online Pet Store
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      Red Sea Fish Pharm ARE21411 Reagent KH/Alkalinity Pro Kit Refill For Aquarium, 75 Tests
      3.8
      ·
      16
      3.8
      16 Ratings
      Red Sea Fish Pharm ARE21411 Reag…
      A
      Amazon.com
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      4.7
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      38
      4.7
      38 Ratings
      API Freshwater GH & KH Test Kit
      M
      Marine Depot
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      4.1
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      15
      4.1
      15 Ratings
      Brightwell Aquatics Alkalin8.3-P - Alk…
      A
      Amazon.com
      delivery truckFree shipping
    9. Saved
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      4.9
      ·
      12
      4.9
      12 Ratings
      API Freshwater/Saltwater Carbonate …
      M
      Marine Depot
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      API GH & KH TEST KIT Freshwater A…
      E
      eBay.com
      delivery truckFree shipping
    11. Saved
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      4.9
      ·
      12
      4.9
      12 Ratings
      API KH Carbonate Hardness Fresh & …
      $12.78
      C
      Chewy.com
      SALE
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