SpaGuard pH Decreaser - 1 Pound 6 Ounces
pH Decreaser lowers the pH of water in hot tubs. The pH should be maintained at 7.2 to 7.6 (as measured by an accurate test kit or strips). SpaGuard pH Decreaser is a dry granular product which is safer and easier to use than liquid acid.
- Sodium Bisulfate 93.2%
- Other Ingredients 6.8%