The makers of POOL FROG and SPA FROG now offer a complete mineral pool care system for the fastest growing pool market! This “portable pool” is made for fun, and Flippin’ FROG helps consumers keep it that way with patented minerals and a low dose of chlorine. Flippin’ FROG is easy to use, with pre-filled cartridges that let the consumer know when the chlorine needs to be replaced by flipping over in the pool! Simply twist them apart and replace the bottom chlorine cartridge (every 3-4 weeks). For pools 12-18 feet in diameter or 2,000 to 5,000 gallons.