Key features

• •FROG Serene eliminates organic contaminants 2 ways with a low level of bromine and FROG Sanitizing Minerals; Bromine and Mineral Cartridges are for use with the FROG Serene Floating System and In-Line System
• •The FROG Serene Sanitizing System Cartridge Kit includes 3 Bromine Cartridges and one FROG Sanitizing Minerals Cartridge. This bundle also includes FROG Test Strips and 3 FROG Maintain Non-Chlorine single-use shock treatments.
• •The FROG Serene Fresh Mineral Water hot tub system uses Bromine and Mineral Cartridges that eliminates organic contaminants, reduce bromine use by up to 50%* and improve the overall quality of hot tub water
• •The Bromine Cartridge can be dialed in to meet your spa's precise needs and is designed to last up to 2-4 weeks. It's prefilled, making replacement quick and easy, plus it's recyclable when empty
• •Only FROG Test Strips show the ideal low bromine level of 0.5-1.0 ppm for FROG hot tubs, other test strips may indicate bromine levels are too low, causing confusion. FROG Test strips help you dial in the correct low bromine level in your hot tub, which can make your Bromine Cartridge last twice as long
• •Shock only once a month with FROG Maintain, the recommended non-chlorine shock. One single easy-to-pour packet keeps your water crystal clear - it's no mess, no guess, no stress and your hot tub is ready 15 minutes after shocking.