MINERAL CARTRIDGE

Spa Frog Mineral Cartridge easily adds water softening minerals to your hot tub.

Softens water, making it easy on your skin and eyes!

Chlorine-based systems cannot match the superior softening and the ease of use of mineral cartridges. No more messy mixing of chemicals!

Designed for use with Spa Frog floating or inline systems.

Replace every 4 months.