Produces super clear water fast through a highly effective “4 x 1” action. The rich sapphire blue formulation combines a powerful clarifier, sequestrant, chelating agent and flocculent in one convenient product. The Sapphire Stuff helps prevent scaling, staining, scum line buildup and foaming in swimming pools and spas. The Sapphire Stuff requires no premixing, will not affect pH and is compatible with all swimming pool sanitizer systems. The Sapphire Stuff removes oils, soaps, metals, cosmetics and other particulate matter that can cause staining, cloudy water and discoloration in swimming pools and spas. The Sapphire Stuff also increases filter efficiency.