HTH 42053 Swimming Pool Care 3 Chlorine Tabs, Swimming Pool Chlorinating Sanitizer, 8lbThe HTH 3 Chlorine Tabs Advanced are the ultimate solution for keeping your swimming pool clean and clear all season long. This advanced formula functions as a sanitizer, clarifier, and algaecide in one convenient tab, protecting both your pool and swimmers. The slow-dissolving tabs are sun-protected for longer chlorine life, lasting up to a week. Theyre compatible with all pool types, including vinyl-lined pools and saltwater systems, and can be used in a floater, feeder, or skimmer basket. For best results, combine these tabs with HTH 6-Way Test Strips to test and balance your pool water and keep chlorine levels between 1 and 4 ppm. Experience the benefits of clear blue water with HTH 3 Chlorine Tabs Advanced.