All Water Types Salt Aquarium Water Test Kits
Best Selling
SPONSOREDSPONSOREDSPONSOREDSPONSORED
185 Results
API Nitrate Test Kit
$13.99Free shippingAPI Ammonia Test Strips Saltwater & Freshwater Aquariums 25 Tests Exp 1/2026
$12.00Trending at $13.22eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.Free shippingAPI KH Test Kit Carbonate Hardness Test Kit for Fresh & Salt Water
$11.99Was: $14.11or Best OfferFree shippingAPI Nitrite NO2 Test Kit for Fresh & Salt Water 180 tests
$12.99Was: $15.28or Best OfferFree shippingCoralife Deep Six Testing Hydrometer Blister
$12.75Was: $17.00Free shippingAPI High Range pH Test Kit Freshwater and Saltwater Marine Aquarium 160 Tests
$9.50Trending at $9.99eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.Free shippingAPI Phosphate Test Kit 150 Tests for Freshwater and Marine Aquariums PO4
$15.99Was: $18.81or Best OfferFree shippingRA pH Aquarium Test Strips - 25 pk
$18.08or Best OfferFree shippingAPI pH Test Strips 25 Count for Freshwater and Marine Aquariums EZ Dip and Read
$14.99Was: $17.64or Best OfferFree shippingSeachem Ammonia 75 Test Freshwater Saltwater Aquarium Water Test Kit Free Total
$9.88$7.15 shippingOnly 1 left!RA KH Carbonate Hardness Test Kit - Freshwater/Saltwater
$19.48Free shippingAmmonia & Phosphate Aquarium Test Strips For Freshwater Saltwater Advatec
$24.99Free shippingAquadene Aquarium Glass Floating Hydrometer AC-112
$9.59Free shippingWide Range pH Liquid Test Kit (Up to 250 Tests) - Fritz Aquatics
$8.62$4.99 shippingIceCap Ice Cap Digital Pocket Salinity Temperature Tester Coral Vue
$45.59Was: $47.99$8.45 shippingLM API API Nitrate Test Kit Fresh & Salt Water
$19.79Free shippingRA Nitrate Test Kit - Freshwater/Saltwater
$22.73Free shipping