Spa Choice 472-3-1021 Clear and Sparkle Spa Water Clarifier, 1-Pint Spa Choice Clear & Sparkle is a fast-acting clarifier for spas and hot tubs that is specially formulated for hot water Aids in the removal of dirt, organics and oils too small for the spa filter to remove Use 2 ounces of Spa Choice Clear & Sparkle for spas and hot tubs up to 800 gallons for clear water Downloadable User Guide Available Under Product Information: Technical Specifications