Pool Frog XL PRO Chlorine Swimming Pool Chemicals, 4.6 lbs

Pool Frog XL PRO Chlorine Swimming Pool Chemicals, 4.6 lbs Designed specifically for use with the POOL FROG XL PRO system Pre-filled Pac for hassle-free handling—no mess, no guess, and no stress Reduces chlorine levels by up to 50% when used with FROG Minerals, lowering standard levels from 1 to 3 ppm to 0.5 to 1.0 ppm Ideal for in-ground pools up to 40, 000 gallons Features a unique erosion design for longer-lasting chlorine