Freshwater™ Phosphate Test Strips Calcium Increaser Please Note: Not for use

Please Note: Not for use on fabric hot tub covers

(1) 7/8" x 7/8" Patch

Add to spa water to prevent filter clogging and build-up and reduce maintenance

then fully drain hot tub or swim spa

FROG® Hot Tub Pipe & Jet Cleanser breaks down biofilm

Freshwater™ Phosphate Test Strips Calcium Increaser Please Note: Not for useFreshWater 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.