FROG Mineral Cartridge - For @ease Smartchlor and Serene In-Line Systems Caldera cold plunge filter blue top filter are interchangeable

blue top filter are interchangeable

Frog TArget™ Total Alkalinity Increaser is compatible with all spa water sanitization systems including: silver ion/granulated chlorine systems

WHILE SUPPLIES LAST

but we can order it for you from Hot Spring

FROG Mineral Cartridge - For @ease Smartchlor and Serene In-Line Systems Caldera cold plunge filter blue top filter are interchangeableThe 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