SPA FROG Cartridge Starter Kit Refill Bromine and Mineral Cartridges for Hot Tubs
Keep stocked between spa refills with the SPA FROG Cartridge Starter Kit. Each kit includes three bromine cartridges and one mineral cartridge for no mess, no guessing water care. The Spa Frog cartridges can be used in the floating system or with an in-line chemical system. Replace the bromine cartridge every 2-4 weeks and the mineral cartridge every 4 months.
Each pack contains 3 bromine cartridges, 1 mineral cartridge. For spas up to 600 gallons.
Don’t forget to activate the mineral cartridge with FROG Jump Start Activator Shock.