FROG @ease Replacement SmartChlor Chlorine Cartridge - 3 Pack

3-pack of FROG SmartChlor replacement Cartridges for with the FROG @ease Floating Sanitizing System Mineral Cartridge, Cyanuric Acid free, ideal for hot tubs up to 600 gallons SmartChlor is a patented chlorine formula that adds a low level of chlorine only when needed for continuous crystal clear water and peace of mind; it works with FROG Sanitizing Minerals. FROG @ease SmartChlor, a patented chlorine formula that adds a low level of chlorine only when needed and combines with FROG Sanitizing Minerals, creating Fresh Mineral Water for continuous crystal clear water and peace of mind. You up to 75% less chlorine* with FROG @ease, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. Condition the water for softness, absorb acid to help keep pH balanced. *Compared to the minimum ANSI recommended chlorine level of 2.0 ppm for a hot tub. With FROG @ease, you shock only once a month, or when draining and refilling your hot tub – that’s so much easier than shocking after every – it saves time and the frustration of constant shock treatments