FROG Mineral Cartridge - For @ease Smartchlor and Serene In-Line Systems Total Alkalinity Increaser we can't guarantee that

we can't guarantee that

FROG Test Strips are specially formulated to effectively read the lower chlorine or bromine levels used in the Spa Frog systems

Ft Antimicrobial Filter part #4520044

Filter Specs:50 Sq Ft

FROG Mineral Cartridge - For @ease Smartchlor and Serene In-Line Systems Total Alkalinity Increaser we can't guarantee thatThe FROG Mineral Cartridge is the blue cartridge that is used in both FROG @Ease SmartChlor (Chlorine) and Serene (Bromine) In Line Systems. The FROG blue Mineral Cartridge is replaced every 4 months. The FROG system will not work correctly if the blue mineral cartridge is more than 4 months old. For use in: FROG @ease SmartChlor in line system FROG Serene (Bromine) in line system Please Note: FROG makes blue mineral cartridges that say @ease and