Spa Frog Mineral Cartridge - King Technology

Spa Frog Mineral cartridge used as a refill in either the Spa Frog Floating System or the Spa Frog in line system installed on newer spa models including: Emerald, Saratoga, Caldera, Marquis, Morgan, Watkins Hot Spot, Pacific Hot Tubs, and Leisure Bay spas.

Replace the mineral cartridge every 4 months when your drain and refill your spa.