Take the work out of maintaining your spa.
Use with Bromine cartridge.
For use in your Marquis in line spa system or floating spa system.
The Spa Frog Mineral Cartridge contains a patented mineral formula that destroys bacteria while neutralizing acids, which helps keep pH in a safe range with less monitoring. Using Frog Minerals with reduced levels of bromine improves spa pleasure by reducing the irritations associated with bromine including red stinging eyes, dry itchey skin and faded bathing suits.