20 Tests/Bottle (powder pillow reagents and testing vial) Tests for: Phosphates
This Phosphate Test Kit Uses the most accurate method for phosphate testing: a one step, one minute, phosphate test. Even very low levels of phosphate can feed algae and create problems in hot tub water when using a salt system.
Test for phosphate once a month as the concentration in the water can increase rapidly due to bather load. Get results in a minute!