Simplify spa & hot tub chemicals maintenance by reducing sanitizer demand!
- Helps control bacteria, prevent algae and improve filter efficiency, drastically reducing the amount of harsh spa chemicals needed to maintain a clean and healthy spa.
- Formulated for use with bromine, chlorine, ozone and non-chlorine shock.
- Fits most filters, and lasts up to four months in spas up to 600 gallons.
- Insert into filter cartridge, in filter well or in skimmer.
- Lower your chlorine or bromine level to only 0.5 ppm.
- Replace every 4 months when draining and refilling spa.