Pool Care Granule pH Minus 5 lb, Hth, Mfr#: 67057

HTH pH Down helps balance pH levels in swimming pool water improving both the quality of the water and the comfort of your swimmers. pH down not only ensures that your chlorine is working more efficiently but it helps prevent scale formation on pool surfaces and equipment as well as significantly reduces skin and eye irritation. HTH pH Down is great for all pool types including vinyl-lined pools and salt water systems.