Flippin' Frog XL Pool Sanitizer

Fresh Mineral Water System for Pools 5,000 to 10,000 gallons. Two pre-filled cartridges for no mess, no guess and no stress pool care. Kills bacteria with up to 50% less chlorine*. Minerals in the green cartridge last all summer. Chlorine lasts 3-4 weeks because you only need a low 0.5 ppm level. Flippin' FROG XL flips over when the chlorine cartridge is empty. Easy pull off and snap on convenience with a 5 setting dial on the chlorine cartridge. Chlorine cartridge is recyclable when empty.