• 4 count package
• Includes (1) FROG @ease Mineral Cartridge & (3) SmartChlor Cartridges

The 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