The FROG® Serene Cartridge Replacement is a mineral sanitizer that cleans and softens hot tub water inside your filter cartridge.
The unique design lowers the use of bromine up to 50% and helps prevent algae by circulating it through our patented mineral formula, destroying bacteria and dispensing a low level of minerals into the spa water.
- Was formerly the Filter Frog Spa Water Care System
- For the Spa Frog Floating or In-Ground System
- Hot tub sanitizer for hot tubs up to 600 gallons
- Fits easily into the center of your spa’s filter cartridge
- Simply supplement with 1 ppm of chlorine or bromine
- Kills bacteria in 2 ways: with minerals and a low level of chlorine or bromine
- The result is Fresh Mineral Water® which looks and feels amazing
- Immediately effective
- Helps maintain a neutral pH and keeps the water looking crystal clear
- Lower your bromine or chlorine use up to 50% with minerals
- Filters so the water feels soft and is easier on your skin, swimsuits and spa surfaces
- Features a convenient reminder dial – set it and forget it for 4 months
- Easy installation into most filters – no assembly required
- Welded rod helps prevent breakage
- Can be shortened, if necessary
- Lasts for 4 full months
- Model #01-14-3812 (3712)
This product is considered a “hazardous material,” is air-restricted and cannot be shipped to Alaska or Hawaii.
All Chemical sales are final.
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