The flippin amazing technology that s turning pool care upside down! Made specifically for popup, soft sided pools, Flippin FROG combines the proven FROG technology for larger pools with the ease of connect, set and float til it flips! The top cartridge contains minerals that last 6 months and the bottom holds 2-4 weeks of chlorine. When the system flips over, users twist off the old and twist on a new chlorine cartridge. It s that flippin easy! After 6 months replace the entire unit with a new Flippin' Frog.