Spa Guard Spa Sentry is an easy, one step liquid for maintaining a stable, comfortable pH and softening your spa's water. It makes balancing the water extremely simple, eliminating the need for many other water balancing treatments you may currently be using. Spa Sentry is the easiest way to control pH for clear, stable water. pH is the most critical factor because it changing rapidly when bathers, products or other elements enter the water.
|Dimensions||1 × 1 × 1 in|