• Designed to reduce chlorine, tastes and odors and prevent scale formation in plumbing systems Combo pack includes both carbon block cartridge and OneFlow cartridge OneFlow cartridge rated up to 250000 gal or replace every 3 years Carbon block cartridge has a 20 um rating Carbon block cartridge rated up to 50000 gal at 3 gpm

This replacement combo cartridge pack includes a radial flow carbon block 20 um cartridge and a OneFlow® Plus scale prevention cartridge. The carbon block cartridge has a dirt holding capacity up to 2.2 lb or 1 kg and reduces chlorine taste and odors up to 50,000 gal or 189,000 L at 3 gpm or 11.34 Lpm. The OneFlow Plus media-assisted crystallization cartridge (MAC) is designed to reduce scale formation and must be replaced every 3 years or 250,000 gal, whichever is earlier.