Keep your spa water clean, clear, and low-maintenance with the inline FROG® Bromine Cartridge from FROG. Designed to work seamlessly with compatible inline systems, this cartridge delivers a steady, controlled release of bromine to sanitize your hot tub for up to a month—so you can spend less time adjusting chemicals and more time relaxing.

The smart, pre-filled design eliminates the hassle of measuring and handling loose chemicals. Simply insert the cartridge into your inline system, set the dial, and let it do the work. Bromine is known for its effectiveness in hot water, helping keep your spa sanitized while remaining gentle on skin.

Why you’ll love it:

1. Lasts up to 3–4 weeks for consistent sanitation
2. Easy, no-mess cartridge replacement
3. Maintains clean, clear, and balanced water
4. Designed for use with inline FROG systems
5. Bromine formula is ideal for hot tubs and spas
6. Reduces frequent chemical adjustments

Perfect for routine spa care, this cartridge makes maintaining safe, comfortable water simple—giving you a worry-free soak every time.