Sani Marc Summer Smiles 30-07080-04 4L Clarita Concentrated Clarifier is a fast-acting concentrated clarifier that improves the effectiveness of the filtering system 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. Clarita is not affected by chlorine and is efficient at any pH level. No need to adjust pH level.