Spa Frog Serene Refill Kit With Three 200g Bromine Cartridges and One Mineral Cartridge. This kit is for the Spa Frog Serene and @ease In-Line Systems only. Optimized for Caldera Spas models years 2008 and newer! For the Serene Floating System, use the 150g kit.
This kit includes.
- (1) Mineral Cartridge
- (3) 200 gram Bromine Cartridges (each lasts between 3 - 5 weeks)
The FROG Serene In-line System is one of the most popular ways to maintain your Caldera or Hot Spring Hot Spot Series Spa. FROG Serene keeps your hot tub clean while eliminating the work and the guesswork. Instead of spooning in chlorine daily, you simply replace a pre-filled cartridge about once a month. FROG Serene works by killing bacteria in two ways with sanitizing minerals and a very low level of bromine. The resulting Fresh Mineral Water® has a completely different quality that provides the serene feeling you’re looking for.
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Product style and packaging may vary.