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.