Sani Marc Summer Smiles 30-07075-01 1L Clarita Ultra 2 in 1 Long-Lasting Clarifier is a fast-acting concentrated clarifier that improves filtration by coagulating tiny particles in the water. The resulting larger solids are deposited at the bottom of the pool or captured by the filtration system. Leaves water crystal clear in just 12 hours. Clarita Ultra 2 in 1 has anti-phosphate properties. When used weekly, it continuously eliminates phosphates in the water. Clarita Ultra 2 in 1 is not affected by chlorine and works in any pH condition. It will not alter the water’s pH level.