Zodiac Nature2 G35 Replacement Cartridge W28135 W26735 The Nature2 Professional G mineral sanitizer for in-ground swimming pools delivers improved water clarity, and clean, safe water without the harsh effects of traditional chlorine-based treatments. Working with your swimming pool filtration system, the Professional G uses elemental minerals that work with a small amount of chlorine to inhibit bacteria growth and eliminate contaminants. Minerals make the water noticeably softer, and less chlorine means no more red-eye, dry skin or foul odors. With Nature2 Professional G you get water that looks, feels and smells noticeably cleaner. Cartridge lasts 6 months

Zodiac Nature2 G45 Replacement Cartridge W28145 W26745 The Nature2 Professional G mineral sanitizer for in-ground swimming pools delivers improved water clarity, and clean, safe water without the harsh effects of traditional chlorine-based treatments. Working with your swimming pool filtration system, the Professional G uses elemental minerals that work with a small amount of chlorine to inhibit bacteria growth and eliminate contaminants. Minerals make the water noticeably softer, and less chlorine means no more red-eye, dry skin or foul odors. With Nature2 Professional G you get water that looks, feels and smells noticeably cleaner. Cartridge lasts 6 months

Zodiac Nature2 Mineral Sanitizer SPA W20660 Nature2 Spa uses patented mineral-bed technology to destroy bacteria. Its revolutionary process significantly improves the look, feel and smell of your spa water, by dramatically reducing chlorine and bromine requirements. If used with MPS, the most recommended spa oxidant, Nature2 Spa becomes a complete spa sanitizing system – the only non-chlorine spa sanitizing option available. And managing your spa is easier than ever; Nature2 Spa slips into your spa filter and lasts up to four months. BenefitsSimply drops right into your filter Works with your existing filtration system Hassle-free maintenanceLeaves water softer and clearer Product SpecificationsAvailable for spas: Up to 500 gals Works with all spa flow ratesCartridge lasts 4 months