FROG Serene Mineral Replacement Cartridge + Bromine Cartridges for Hot Tubs (600 Gallons)

About this item

• FROG Serene (formerly Spa FROG) replacement cartridges give you weeks and weeks of ahhmazing hot tub water, fit the Floating or In-Line System
• FROG Sanitizing Minerals reduce bromine use up to 50%*; this bundle includes 4 Bromine cartridges for weeks of ahhmazing hot tub water, which last up to 4 weeks depending hot tub size and usage; ideal for 600 gallon hot tub
• Prefilled Cartridges mean no touching or measuring bromine – no mess, no guess, no stress!
• FROG Serene is a comprehensive sanitation solution that removes organic impurities using a combination of bromine and FROG Sanitizing Minerals at a gentle level, providing reassurance.
• This bundle includes 1 FROG Sanitizing Mineral Cartridge, which lasts 4 months; minerals eliminates organic contaminants, condition the water for softness and absorb acids – water feels much more comfortable