- Special Value Bonus Pack includes 1 packet of Spa Frog Maintain Non-Chlorine Shock plus exclusive Hot Tub Pirate Approved Water Balancing Guide.
- Refill for use in either the Spa Frog Serene floating system, or for users of the Spa Frog inline system along with companion Frog Bromine Cartridge for complete Hot Tub water care.
- Just set it and forgetÂ -Â replace the Mineral Cartridge approximately every 4 months.
- Lower your bromine use up to 50% with FROG mineralsÂ Â
- Enjoy soft feeling water thatâ€TMs easier on skin, swimsuits and spa surfaces and less chlorine orders.
Size : 3-Pack