Spa Granule pH Minus 2.5 lb, Hth, Mfr#: 86132

HTH Spa pH Down helps balance pH levels in your spa water improving both water quality and comfort. pH Down not only ensures that your sanitizer is working more efficiently but it helps prevent scaling of spa surfaces as well as significantly reduces skin and eye irritation. HTH Spa pH Down is great for all spa types including bromine chlorine and biguanide.