AquaChek Pool and Spa Test Strips – 1 Minute Phosphate
Test for: Phosphate
One step, one-minute phosphate test. Even low levels of phosphate can lead to algae in your pool or spa. This test uses powder pillows and vials, which offer increased sensitivity at the lower ranges. The powder pillows are less susceptible to damage by heat and humidity and offer a 5-year shelf life.