Frog Serene Cartridge Kit

Keep your spa water clean, clear, and perfectly balanced with the Frog Serene Cartridge Kit. This all-in-one kit includes one blue mineral cartridge and three yellow bromine cartridges to provide an easy, low-maintenance spa care solution. Designed for use with the Spa Frog Serene Floating System or factory-installed Inline Systems, it offers adjustable release rate settings for customized water care.

What's Included:

• (1) Blue Mineral Cartridge - Replace every 4 months
• (3) Yellow Bromine Cartridges - Each lasts 2-4 weeks

Compatible with:

Fits Spa Frog’s Inline System, commonly factory-installed on hot tubs by Bullfrog, Caldera, Cal Spas, Catalina, Coast, Emerald, Hot Spot, Hot Spring, Leisure Bay, Marquis, Morgan, Pacific, Saratoga, Watkins, and more.