Replacement cartridges are for use in either the Spa Frog Floating
System, or for users of the Spa Frog In-line System, factory-installed in their spas.
Floating System
In-Line System
Product notes: Replace the mineral cartridge every 4 months when you drain and refill your spa. The bromine cartridge will last 2-4 weeks depending on use. The Spa Frog inline system is factory-installed on selected newer spa models
including: Emerald, Saratoga, Caldera, Marquis, Morgan, Watkins Hot Spot,
Pacific Hot Tubs, and Leisure Bay spas.
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