GLB Pool Filter Cleanse, 2 lb Bottle | 71006

Features and Benefits Special solution changes color from red to yellow when filter is clean Multi-purpose, granular formulation cleans any type of filter (sand, cartridge or D.E. filters) Compatible with chlorine, bromine, mineral purification systems, salt water pools, ozone and biguanide sanitizers Dosage Rate: 1 lb. per 5 gallons