AquaChek Pool Water Test Strips – Phosphate – 20 Count
AquaChek Phosphate Test Kit (20 count) Test for phosphate once a week as the concentration in the water can occur rapidly due to rain, debris or bather load. Each kit comes complete with Test Vial, Color Chart and Directions. For use with phosphate removing products such as ZeroPhos, PHOSfree, or Lo-Chlor Starver. Each bottle contains 20 tests.