This FROG @ease In-Line Spa SmartChlor® Sanitizing Replacement Cartridge is a unique form of chlorine that works only with FROG® minerals in the FROG® @ease In-Line Spa System. It uses SmartChlor^® Technology that creates Fresh Mineral Water® and uses up to 75% less chlorine, with no frustrating yo-yo chlorine levels.

• Replacement SmartChor® Cartridge for the FROG® @ease In-Line Spa System
• SmartChlor® Cartridge lasts up to 3-4 weeks depending on hot tub usage and is recyclable when empty
• Maintains a consistent 0.5-1.0 ppm free chlorine level at all times which means no faded swimwear and no chlorine smell
• When the SmartChlor^® Cartridge is depleted, the system will flip over as a visual reminder to replace the empty cartridge with a new one
• Shock your spa only once a month
• Self-regulates for continuous crystal clear water
• Easy on hot tub surfaces with less odors
• No constant monitoring
• No mixing chemicals
• EPA registered
• Single color match for easy reading – exclusively with FROG® @ease Test Strips (sold separately)