FROG Serene Replacement Bromine Cartridge for use with Hot Tub FROG Serene Floating Sanitizing System - Prefilled for Quick & Easy Hot Tub Maintenance - 1 Pack

Great

I've been a hot tub owner for years, and I've tried just about every sanitation system out there. Let me tell you, the FROG Serene Bromine Replacement Cartridge has been a game-changer! I was hesitant to switch from traditional chlorine, but the ease of use and the consistently beautiful water have completely won me over.Installation was a breeze – just pop it in and adjust the dial. The water has never looked or felt better. It's incredibly clear, and the bromine level stays perfectly balanced, meaning I spend less time fussing with chemicals and more time enjoying my hot tub. No more harsh chlorine smells or irritated skin!What truly sets this product apart is the longevity of the cartridge. I'm amazed at how long it lasts, saving me both time and money. Plus, the peace of mind knowing my water is sanitized effectively is priceless.If you're looking for a simple, effective, and gentle sanitation system for your hot tub, look no further than the FROG Serene Bromine Replacement Cartridge. It's truly a 5-star product that has made hot tub ownership a much more enjoyable experience. Highly recommend!

I really like that these are adjustable so they will work in any sized spa. There is no unpleasant odor yet I know my spa is healthy to use with these bromine cartridges..

Works well good price

I love having a cartridge system for my spa. The frog system is no mess and keeps my bromine levels where they need to be. I have these on subscription monthly so I don't run out.