Make hot tub water care simpler with the FROG Serene Bromine Cartridge (150g). Designed for use with FROG Serene Floating and compatible In-Line Systems, this pre-filled replacement cartridge provides a convenient, controlled way to maintain the bromine needed to keep spa water clean and properly sanitized.
Instead of measuring sanitizer by hand, simply install the cartridge and adjust the setting for your hot tub. The cartridge gradually releases bromine into the water and typically lasts 2–4 weeks, depending on hot tub size, usage, and the number of bathers.
When paired with the FROG Serene Mineral Cartridge, the system combines minerals with a low level of bromine to provide effective sanitizing with less reliance on bromine alone. According to FROG, its mineral system can reduce bromine use by up to 50%, helping provide fresh, clear water with less chemical odor and a softer feel.
Why Choose the FROG Serene Bromine Cartridge?
- Easy hot tub maintenance: Pre-filled cartridge eliminates the need to measure bromine for routine sanitizing.
- Adjustable bromine delivery: Set the cartridge to match the needs of your hot tub.
- Long-lasting convenience: One 150g cartridge typically lasts 2–4 weeks.
- Uses less bromine with FROG minerals: The complete FROG Serene system can reduce bromine use by up to 50% compared with traditional bromine-only water care.
- More enjoyable spa water: Lower bromine use can mean less sanitizer odor and water that feels softer and more comfortable.
- Convenient replacement: When the cartridge is empty, simply remove it and install a fresh one.
For hot tub owners already using the FROG Serene system, keeping replacement Bromine Cartridges on hand is an easy way to maintain consistent water care without unnecessary measuring or guesswork.
