API Test Strips - 5 in 1 (25 tests)
The quick and accurate way to test for pH, Nitrite, Nitrate, General Hardness and Carbonate Hardness.Desiccant-lined tube, with snap-tight cap, provides maximum protection for accurate results. * Highly precise colour charts. * Dip directly into aquarium - no separate vial needed. * Includes information on how to correct unsafe water conditions. * For fresh and salt water. 125 Test 25 Strips.