FROG Serene (formerly Spa FROG) Mineral Cartridge - 2 Pack
Brand: King Technology
Color: 2 Pack: Mineral Spa Frog Replacement

FROG Serene Mineral Cartridge is used with the FROG Serene Bromine Cartridge in either the Floating or In-Line System for complete water care that kills bacteria 2 ways and maintains cleaner, clearer, softer water that's easier to take care of. Simply set wide open to #6 and snap into one of the holders. If the In-Line snap into the top holder with the bromine on the bottom. Minerals will last 4 months.

For use with the FROG Serene Floating or In-Line System
Use with the FROG Serene Bromine Cartridge for complete water care
Replace the Mineral Cartridge every 4 months
If draining/refilling prior to 4 months, replace the Mineral Cartridge at that time
Water feels softer and is very easy to manage