Aries FilterWorks AF-20-2125-BB 20" x 4.5" KDF-55 & Coconut Shell GAC Water Filter Cartridge - (2.5 lb) Reduces Chlorine, Heavy Metals, Scale & Microorganisms - Made in USA 20 inch x 4.5 inch Big Blue Filters2074 5 - 5 GPM Range

5 - 5 GPM Range

Compatible with Harmsco HIF

3/4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems

Works with existing Q-Series filter heads available in 1/4" quick-connect

Aries FilterWorks AF-20-2125-BB 20" x 4.5" KDF-55 & Coconut Shell GAC Water Filter Cartridge - (2.5 lb) Reduces Chlorine, Heavy Metals, Scale & Microorganisms - Made in USA 20 inch x 4.5 inch Big Blue Filters2074 5 - 5 GPM RangeThe Aries FilterWorks AF 20 2125 BB combines 2. 5 pounds of KDF 55 redox media with acid washed coconut shell GAC in a 20" x 4. 5" double open end cartridge engineered for whole house and point of use chlorine, heavy metal, and scale reduction. This full flow design from ResinTech's Aries division delivers 50% more capacity than standard 2. 5" diameter filters while maintaining compatibility with Pentek, GE, Culligan, and most 20 inch Big Blue