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 youre looking for.

• 1 count package
• Lower your bromine use up to 50% with FROG minerals
• Unlike chlorine, bromine slowly dissolves in hot water so it’s easier to regulate
• Bromine is less impacted by pH swings ensuring sanitizing effectiveness
• Soft feeling water that’s easier on skin, swimsuits and spa surfaces
• Just set it and forget it for weeks at a time
• Less odor than chlorine
• Model #01-14-3824
• FROG Serene Floating System sold separately
• FROG S