Check the listing for details. Whole House CTO Carbon Water Filter for Countertop System 4Pack. Color: Black, Condition: New. Listed at 28.49 USD. 1 Micron 10"*2.5" Whole House CTO Carbon Sediment Water FilterThe filter can be used in any standard 10"x 2.5" RO Unit whole house filtration system . Compatible for standard 10inch X 2.5inch filter models of DuPont WFPFC8002, WFPFC9001, SCWH-5, Whirlpool WHCF-WHWC, Pentek CBC-10, GE FXWTC, Culligan D-10A & D-10, Aquaboon CTO, Ace Hardware 84608, Apex IR-40, COR10B5, Dupont DWC30001, PFC8002, WFDWC30001, WFPFC8002, WFPFC9001, Everpure CG5-10, DEV9108-15, GE FX12P, GXWH20F.The filter is high-density type, which is more suitable for City Water. HOWEVER, if your water source is Well/Spring water, this filter may not reach your ideal life expectancy. Please select the "GOLDEN ICEPURE PPW10" filter suitable for well water.NSF/ANSI 42 certification information:Certificate WP-12925, by IAMPO, 2022.High Quality FiltrationThe Innovated Sintering Technology Filter has an large capacity and strong contiminants absorption ability.Particle filtration 99%This filter not only filtering 99% Chlorine and color, but also filtering particles and sediment including rust, limescales and sediment.NSF/ANSI 42 CertifiedNSF/ANSI 42 certification information:Certificate WP-12925, by IAMPO, 2022.Just take 1 min for easily installation."Easy" will be your first feeling while installing it in the familiar way. Manual instruction is also recommended to take a quick look for a better understanding.Enjoy good tastes in 6-month.It's able to effectively running over 6-month unless you host parties every day.Enjoy your happy life with your family.Happiness, fulfillment, welfare will be more related to you by using GOLDEN ICEPURE water filter.Replacement other models and system models:The filter can be used in any standard 10'' x 2.5'' countertop, undersink, icemaker, Reverse Osmosis and whole house filtration system.Compatible for DuPont WFPFC8002, WFPFC9001, SCWH-5, Whirlpool WHCF-WHWC, CBC-10, GE FXWTC, Culligan D-10A & D-10, Aquaboon CTO, Apex IR-40, COR10B5, Dupont DWC30001, PFC8002, WFDWC30001, WFPFC8002, WFPFC9001, Everpure CG5-10, DEV9108-15, GE FX12P, GXWH20F.Pcs/Box: 2 units/boxFilter Dimensions: Length: 10 inch , Diameter: 2.5 inchFilter Life: Replace every 3-6 months/30000 gallons (Depending on water quality)Flow rate: 2.5-5 GPM （*Flow rate varies based on the regional water pressure/quality.）