RECOGNIZED CERTIFICATION? – Food Grade Material Meets TUV, ROHS, REACH, BPA FREE Certified. The filter reduces up to 99% of Chlorine, sand, rust, sediment, color, odor. This kind of filter is recommended for tap water filtration. MULTI-LAYER DENSITY TECH? – The whole house water filter is designed with density three PP layers and Coconut Shell Activated Carbon Layer to remove most contaminants and deliver great fresh water. The multi-layer density tech can capture impurities targetedly and have 30% longer service life than the other common type. Food Grade Material Meets TUV, ROHS, REACH, BPA FREE Certified. Reduces up to 99%. Of Chlorine, sand, rust, sediment, color, odor. The whole house water filter is designed with density three PP layers and Coconut Shell Activated Carbon Layer to remove most contaminants and deliver great fresh water. The filter can filter up to 15000 gallons depending on water quality. Suggest to replace it. For the average household for optimal performance depending on the use. Let it bring a wonderful cleaner water experience to your loved ones. The filter can be used in. Any standard 10″x 4.5″ heavy duty filter housings. And compatible for standard 10 inch X 4.5 inch filter models of GE, Culligan, Dupont, Kenmore, Omnifilter, Whirlpool. Replacement for 10″ x 4.5″ filter housing like American Plumber, GXWH35F, WRC25HD, GXWH40L, GXWH30C, GXWH38F, GNQH38S and most systems with 10″ x 4.5″ filters, GE FXHTC, American Plumber WRC25HD, WHIRLPOOL WHKF-WHPCBB, Pentek RFC-BB and Culligan RFC-BB water filter. Compatible Replacement Filters? GE FXHTC, GXWH40L, American Plumber GXWH35F, GNWH38S, WHIRLPOOL WHKF-WHPCBB, WRC25HD, GXWH30C, GNQH38S, Pentek RFC-BB, Culligan RFC-BB, HD-950A, Whirlpool WHKF-GD25BB, RFC-BBSA, and most systems with 10″x4.5″ filters. 10″ x 4.5″(Inside diameter 1.1 inches, outer diameter 4.52 inches, height 9.84 inches). Premium Quality Coconut Shell Carbon. Every 6 months or earlier. Depending on your water quality. Food Grade Efficiency Filtration. 1X 20″ x 4.5″ CTO Carbon Block Water Filter. 2X 20″ x 4.5″. CTO Carbon Block Water Filters. 4X 20″ x 4.5″. 6X 20″ x 4.5″. Not all of the “6 PACK” Filters are included in the package, please choose the “Quantity” You Need in the selection. Why Choose the USA Stock? Membrane Solutions is well established company with great experience and specialists in water purification. Our products are widely used in residential, commercial and industrial. Membrane Solutions is committed to. Offering our customers exceptional selection and value. Provide the highest quality of service and products in the water treatment industry. Satisfying our customers with superior quality water filtration products that will lead to a healthier lifestyle. We will appreciate for your help. We promise we will try our best to deal with your problem.