For any hot tub up to 600 gallons
Kills bacteria 2 ways with minerals and SmartChlor
Self-regulating for continuous crystal clear water
Up to 75% less chlorine use with no yo-yo chlorine levels
Floats in the hot tub - flips over when empty

Kills bacteria with up to 75% less chlorine than ordinary systems.
Shock only once a month.
SmartChlor cartridge lasts up to 4 weeks depending on hot tub usage. Flips when empty.
The mineral cartridge lasts 4 months or whenever you drain your hot tub.