Spa Frog Serene Bromine Cartridge for use in Floating System and Inline System. Use with companion Mineral Cartridge.
- Adjustable yellow bromine cartridge
- For Frog Floating or Inline systems
Product notes: Bromine cartridge lasts 2-4 weeks. Inline system factory-installed on spas including Emerald, Coast, Saratoga, Caldera, Marquis, Morgan, Watkins Hot Spot, Pacific Hot Tubs, Catalina, Cal Spas, Leisure Bay. Use with blue Mineral Cartridge.
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