· Swim Spa Sanitizing System: The FROG @ease Floating System floats when working, flips when empty and is perfect for swim spas up to 3000 gallons; replace the Mineral Cartridge once every four months and the SmartChlor Cartridge every 3 to 4 weeks· Innovative Technology for Clean Water: FROG @ease combines our patented Mineral formula with SmartChlor Technology to create clean, silky soft Fresh Mineral Water in your swim spa· Easy Swim Spa Maintenance: FROG @ease self-regulates for continuous crystal clear water; easily check when a SmartChlor Cartridge replacement is needed with the one color match on the included FROG @ease Test Strips· Swim Spa Sanitization: With FROG @ease, you use up to 75%* less chlorine, making the water easier on skin, swimsuits and your swim spa’s surfaces; patented Mineral Technology sanitizes water and helps keep pH balanced· Water Care Expertise: FROG has more than 25 years of experience making water care easier & keeping pool, hot tub and swim spa water sanitized; FROG’s patented Mineral Technology and prefilled cartridges create cleaner, clearer, softer water