Freshwater™ Phosphate Test StripsWatkins Wellness
FreshWater™ Phosphate Test Strips provide quick and reliable water test results. High amounts of phosphates in your hot tub will create an environment that algae likes to grow in. It can be difficult to keep a residual level of free available chlorine or bromine in your spa when there are significant amounts of phosphates in the water.
Test instructions are on the bottle, along with a color chart.
Contains 25 test strips.
Measures phosphates from 0 ppb to 2500 ppb (parts per billion)
Did You Know? Keep phosphates below 300 ppb to avoid problems in your spa.