FROG Serene 200 Gram Bromine Replacement Cartridge – 1 pack pool treatment chemicals and frequent weekly chlorination

and frequent weekly chlorination

hands-free sanitizing for peace of mind with every swim

The average routine dose is 2 to 3 oz per 10

FROG minerals and SmartChlor help sanitize hot tub water using a low

algae control support

FROG Serene 200 Gram Bromine Replacement Cartridge – 1 pack pool treatment chemicals and frequent weekly chlorinationFROG Serene 200 Gram Bromine Replacement Cartridge Single Pack (adjust to any desired quantity in your shopping cart). This longer lasting 200 gram cartridge (green) works seamlessly with FROG Serene In Line and FROG Serene Floating Sanitizing Systems to keep your spa water pristine with minimal effort. Can be used to replace the 150 gram FROG Bromine Cartridge (yellow). Works along with the FROG Serene Mineral Cartridge for use in: FROG Serene