King Technology Cartridge Kit, King Technology Spa Frog | 01-14-3856

King Technology 01-14-3856 Cartridge Kit, King Technology Spa FrogKing Technology Spa Frog Cartridge Refill Kit The King Technology Spa Frog Cartridge Refill Kit contains 1 Mineral Cartridge and 3 Bromine Cartridges. Spa Frog Bromine and Mineral Cartridges are for use in the Spa Frog Floating Systems, in which pre-filled mineral and bromine cartridges combine in a floating dispenser to give any spa crystal clear water with a silky feel. Replace the mineral cartridge every four months when you drain and refill your spa. Replace the bromine cartridge every two to four weeks, depending on use.