Home / Chemicals / Pool / Water Balancers / 4# pH Increaser “4.5lb NST Prime (Non Stabilized Tablet)” has been added to your cart. View cart $11.99 4# pH Increaser quantity Add to cart SKU: 84455 Categories: Chemicals, Pool, Water Balancers Product ID: 4370 Description Description Raises pH in pool water. Related products Sale! 5lb Instant Clear Chlorine Granules $51.99 Original price was: $51.99.$43.99Current price is: $43.99. Add to cart Sale! Case of 4 – Oxidizer (Shock) $107.96 Original price was: $107.96.$98.99Current price is: $98.99. Add to cart Sale! 4.5lb NST Prime (Non Stabilized Tablet) $37.99 Original price was: $37.99.$34.99Current price is: $34.99. Add to cart Sirona Chlorine/Bromine Spa Test Strips – 25 Count $15.99 Add to cart