FROG @Ease in-Line Mineral Cartridge + 4 in-Line SmartChlor Cartridges for Hot Tubs up to 600 gallons for use in Marquis, Caldera, Artesian and Hot Springs Spas; Hot Tub Sanitizer, Cyanuric Acid Free

For use only in certain hot tub models: Artesian Elite, Artesian Island (optional on Artesian Island Elite and South Seas); Marquis Crown (optional on Marquis Elite, Vector and Celebrity); Caldera Vacanza; and Hot Spring Hot Spot.

Includes 1 Mineral Cartridge that lasts 4 months plus 4 FROG @ease SmartChlor Cartridges. Each SmartChlor Cartridge lasts up to 4 weeks depending upon hot tub size and use; ideal for hot tubs up to 600 gallons

Eliminates organic contaminants 2 ways with FROG Sanitizing Minerals that eliminates organic contaminants, and a low level of SmartChlor – a unique, patented chlorine that adds chlorine only when needed, maintaining a consistent low Free Chlorine level. Say goodbye to constant monitoring

You use up to 75% less chlorine* with FROG @ease, making water easier on skin, hair, swimsuits, and your hot tub’s surfaces. FROG sanitizing minerals condition the water for softness and absorb acid to help keep pH balanced.

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 use – it saves time and the frustration of constant shock treatments