Freshwater™ Phosphate Test Strips - test for phosphates in hot tub water - part #80093

FreshWater™ Phosphate Test Strips provide quick and reliable way to test your hot tub water for phosphates. 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? You can have some phosphates in your spa water without issue. In general, keep the phosphate level in your hot tub below 300ppb.