iSpring F4WGB22BM 4.5” x 20” Whole House Water Filter Replacement Set - Two Carbon Block Cartridges and Two Iron & Manganese Reducing Cartridges - Fits WGB22BM - Pack of 2 Sets

  • [Protect Your Family and Household Appliance from Iron, Manganese, and More] Our filter (FM25B) is specially designed for iron & manganese removal, reducing iron (MAX 3.0 ppm down to 0.01 ppm) and manganese (MAX 1.0 ppm down to 0.01 ppm). The filter pack also removes sediment, chlorine, rust, herbicides, industrial solvents, and various other contaminants.
  • [DIY Installation and Maintenance] Refer to our manual and our helpful YouTube videos for DIY installation. Water flow: up to 15 GPM. Our filter set fits standard 20” x 4.5” housings, including brand name models.
  • The first stage CTO Carbon Block filter is made of coconut shell carbon to increase filtration efficiency and filter life. It is tested by an independent third-party to meet NSF/ANSI standards. The filter has a capacity of 100,000 gallons of water, enough to supply a family of four with clean water for a full year.
  • [Peace of Mind Customer Service] Register online to activate your manufacturer warranty and life-time free tech support from U.S. local support team. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help!
  • [Please Note] The cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. For well/pond water with very high iron / manganese please contact us for customized solutions.
  • $189.99
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    4 pieces of Replacement Water Filters for 2-Stage 20" Whole House Water Filter #WGB22BM 1 Year Supply #F4WGB22BM

    Product Description


    Style:CTOX2 + Iron & Manganese RemovalX2

    The first stage of the WGB22BM houses a 5-micron CTO coconut shell carbon block filter. Block carbon is finely ground up carbon packed into a solidified block. It knocks out bad tastes and odors, removes up to 99% of chlorine from the water, and is effective on pesticides, herbicides, and industrial chemicals.

    The second stage of the WGB22BM has an iron and manganese reducing filter - also great for the plethora of heavy metals found in well water sources. The FM25B iron and manganese reducing filter is only included with the WGB22BM (and WGB32BM), as it is not needed for most municipal water supplies that the WGB22B targets.


    • Availability: In Stock
    • Model: F4WGB22BM
    • Manufacturer: iSpring