Simpure Gac Filter 20 X 4.5 Inch Whole House Water Filter | Granular, 2 Pack ? [??????? ???????? ????????] Made of premium coconut shell activated granular carbon element that is ground up and held together loosely inside a filter cartridge, the SimPure GAC carbon filter effectively adsorpt contaminants from entering the water. Compatible with NSF 42 certification to ensure your home water is safe and healthy. ? [????????? ???????? ??? ???-????? ???????] The carbon media in the GAC filter adsorbs residual chlorine, removes tastes and odors like sulfur and chlorine smell, colors, significantly improving water quality. Use this charcoal water filter with sediment filters in your household water system to protect the water softener and home appliances, or use them after an inline sediment filter to purify well water or rainwater. ? [???? ???? ???? ??? ???? ??????? ????] This 20" GAC water filter has a large filtration area and a high flow rate of up to 15 GPM, which meets the whole house water needs. It can filter up to 40,000 gallons of water before replacement, saving you time and money. To achieve optimum performance, we suggest replacing it every 6-12 months depending on water quality. ? [????????? ????] Besides being the genuine replacement filter for SimPure DB20, DB20P, DB20P-3, this 4.5x20 carbon water filter is compatible with most 20 inch blue or clear big filter housings such as iSpring WGB32B, WGB22B WGB12B, HB28B, Geek-Pure BB-20T, BB-20B, 150233, 166201, etc. ?[????????? ??????????? ??? ???????????? ?????????] It can be used for well water or city water, suitable for various scenarios such as home, office, farm, restaurant, etc. Besides a 30-day hassle-free return, American-based customer support is available for the life of the product. ?[???????????? ????] Make sure to put the end with small holes to the bottom of the filter housing.