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iSpring F2WGB22BM 4.5” x 20” Whole House Water Filter Replacement Set - One Carbon Block Cartridge and One Iron & Manganese Reducing Cartridge - Fits WGB22BM (F2WGB22BM)
  • [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, 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 extend 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. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS). If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.
  • Out of Stock
    $119.99
    iSpring 2.8" x 12" 400GPD Water Filter Replacement Cartridge Reverse Osmosis Membrane, fits RE4T (MC4)
  • 400GPD Commercial Reverse Osmosis Membrane with Matching Housing
  • TFC (Thin Film Composite) membrane
  • Rejects wide spectrum of impurities down to .0001 micron
  • $123.99
    iSpring 4.5x10 in. 5 micron Big Blue Carbon Block (CTO) Water Filter Replacement Cartridge for Under Sink and Whole House Water Filtration Systems, Pack of 4 (FC15BX4)

    Using quality coconut shell carbon and highly compact fabrication tech, this activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve filtration efficiency and long filter life for 10" Whole House and Undersink Water Filtration Systems. Free of surfactants, binders, and adhesives. No leaching carbon ash.

    Knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is effective on herbicides and industrial solvents and other contaminants like trihalomethanes. Steady flow and high absorption.

    Each cartridge filters up to 50,000 gallons depending on the use and feed water quality. Replace the filter every 6 months or every 50,000 gallons of water for ideal performance, depending on the quality of source water and daily water consumption.

    Fits standard 10"x4.5" filters. Official 2nd stage Carbon Block replacement filter cartridge for iSpring under sink water filter US21B and whole house water filtration system WGB21B; 1st stage for WGB21BM and WGB21B-PB. All 4 cartridges are individually sealed for freshness.

    Your iSpring shopping experience is backed by a 30-day money-back guarantee, extended warranty upon registration, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.


    $109.99
    iSpring 5-Stage 100GPD RO 2-Year Supply, Fits RCC100P (F15-100)
  • Filter pack especially for iSpring 5-stage RO systems, F15-100 #RCC100P series
  • 100 gpd reverse osmosis membrane, TDS rejection rate 90%-97%, tested by independent third-party to meet NSF/ANSI standard
  • 2-Year Supply of replacement filter for standard 5-stage RO system
  • Compatible to most RO systems, includes watts premier, flowmatic, puroline, Crystal Quest, APEC, and etc.
  • $116.14
    iSpring 5-Stage 75GPD Reverse Osmosis 2-Year Supply Filter Pack, Fits RCC7 RCC7P RCW7, white, 15 Piece (F15-75)
  • Tested by independent third-party to meet NSF/ANSI standard, replacement filters for 5-stage reverse osmosis systems
  • Standard sized 10" x 2.5"
  • Fits iSpring RCC7, RCC7P, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec
  • Includes 4x FP15 sediment filters, 4x FG15 GAC filters, 4x CTO carbon filters, 1x RO membrane, and 2x FT15 post carbon filters
  • Each filter is individually wrapped to preserve freshness and extend shelf life
  • $100.09
    iSpring F15-400 400 GPD Tankless RO System Replacement Filter Set, 2-Year Supply, fits RCS5T, 15 Piece, White (F15-400)
  • 2-year supply of replacement filters for iSpring 400GPD Commercial Tank less RO system
  • Individually wrapped, fresh from factory
  • 2 of UPGRADED 300GPD Commercial membranes included
  • $264.49
    iSpring F15-50 5-Stage 50GPD Reverse Osmosis 2-Year Supply Filter Pack, 15 Piece (F15-50)
  • Filter pack fits for iSpring 5-stage RO systems, RCC7 series and RCC7P series
  • 50 gpd reverse osmosis membrane for superior performance, TDS rejection rate 90%-97%, tested by independent third-party to meet NSF/ANSI standard
  • 2-Year Supply of replacement filters
  • Compatible to most ro systems, incl watts premier, flowmatic, puroline, Crystal Quest, APEC, and etc
  • $96.31
    iSpring F15-500, 500 GPD Tankless RO System Replacement Filter Set, 2-Year Supply, fits RCS5T, White, 15 Piece (F15-500)
  • 2-Year Supply of replacement filters for iSpring 500GPD commercial tankless RO system
  • 15 filter cartridges individually wrapped for freshness
  • One piece of 500GPD Dual-Flow RO membrane included
  • Fits iSpring RCS5T
  • $252.99
    iSpring F19D75 2-Year Replacement Set for 75GPD 6-Stage Deionization Reverse Osmosis Water Filter, 2.5" x 10", White (F19D75)
  • 19 pieces of 10" x 2.5" replacement water filters included, good for 2-year supply
  • Individually wrapped to keep freshness
  • Fits iSpring RO DI systems and most other brand name RO DI systems
  • Reduces RO water's TDS level to 1ppm-0ppm; Works for aquarium, reef and fish tank
  • 75 GPD Thin Film Composite (TFC) Membrane included, tested by independent third-party to meet NSF/ANSI standard
  • Out of Stock
    $169.39
    iSpring F19K75 2-Year Filter Replacement Supply Set For 6-Stage Reverse Osmosis Water Filtration Systems (F19K75)
  • Tested by independent third-party to meet NSF/ANSI standard, replacement filters for 6-stage reverse osmosis systems
  • Standard sized 10" x 2.5". The upgraded post-filters and alkaline filters come with quick connections and fittings. Please attach the included fittings to the filters and connect the tubings to the fittings. You may discard the old compression fittings.
  • Fits iSpring RCC7AK, RCC7P-AK, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec
  • Includes 4x FP15 sediment filters, 4x FG15 GAC filters, 4x CTO carbon filters, 1x RO membrane, 2x FT15 post carbon filters, and 4x FA15 alkaline filters
  • Each filter is individually wrapped to preserve freshness and extend shelf life
  • Out of Stock
    $160.59
    iSpring F22-100 5-Stage 100GPD 3-Year Water Filter Replacement Cartridge Supply, Fits RCC1P (F22-100)
  • Tested by independent third-party to meet NSF/ANSI standard, replacement filters for 5-stage reverse osmosis systems
  • Standard sized 10" x 2.5"
  • Fits iSpring RCC7, RCC7P, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec
  • Includes 6x FP15 sediment filters, 6x FG15 GAC filters, 6x CTO carbon filters, 1x RO membrane, and 3x FT15 post carbon filters
  • Each filter is individually wrapped to preserve freshness and extend shelf life
  • $133.39
    iSpring F22-50 50GPD 10"x2.5" Standard Reverse Osmosis Water Filter Replacements Cartridges, 3 Year Supply (F22-50)
  • 3-year supply of replacement filters for RO systems
  • Individually wrapped, fresh from factory
  • Fits 10-Inch standard filter housings, compatible to most RO systems, includes Watts Premier, Flowmatic, PuROLine, Crystal Quest, Apec, and etc
  • Improve the taste of drinking water
  • 50GPD
  • $118.99
    iSpring F22-75 75GPD 10"x2.5" Standard Water Filter Replacement Cartridges, 3-Year Supply (F22-75)
  • Tested by independent third-party to meet NSF/ANSI standard, replacement filters for standard 5-stage reverse osmosis systems
  • Standard sized 10" x 2.5"
  • Fits iSpring RCC7, RCC7P, and most other RO systems that use standard sized filter housings including Flowmatic, PuROLine, Crystal Quest, and Apec
  • Includes 6x FP15 sediment filters, 6x FG15 GAC filters, 6x CTO carbon filters, 1x RO membrane, and 3x FT15 post carbon filters
  • Each filter is individually wrapped to preserve freshness and extend shelf life
  • $126.50
    iSpring F28D75 3-Year Replacement Filter Set for 6-Stage 75GPD Deionization Reverse Osmosis Water Filter, Fits iSpring RCC7D (28pcs 6SED 6GAC 6CTO 3T33 1MC7 6DI) (F28D75)
  • 28 pieces of 10" x 2.5" replacement water filters included, good for 3-Year Supply
  • Individually wrapped to keep freshness
  • Fits iSpring RO DI systems and most other brand name RO DI systems
  • Reduces RO water's TDS level to 1ppm-0ppm; Works for aquarium, reef and fish tank
  • 75GPD Thin Film Composite (TFC) Membrane included, tested by independent third-party to meet NSF/ANSI Standard
  • Out of Stock
    $230.99
    iSpring F28K75 3-Year Filter Replacement Supply Set For 6-Stage Reverse Osmosis Water Filtration Systems (F28K75)
  • Tested by independent third-party to meet NSF/ANSI standard, high capacity replacement filters for 6-stage reverse osmosis systems Standard sized 10" x 2.5"
  • Fits spring RCC7AK, RCC7P-AK, and most other RO systems that use standard sized filter housings including Flowmeter, Purloined, Crystal Quest, and Apec
  • Includes 6x FP15 sediment filters, 6x FG15 GAC filters, 6x CTO carbon filters, 1x RO membrane, 3x FT15 post carbon filters, and 6x FA15 alkaline filters
  • Each filter is individually wrapped to preserve freshness and extend shelf life
  • Out of Stock
    $197.99
    iSpring F2US21B Direct Connect 4.5"x10" Undersink Water Filtration CTO Carbon Block and GAC+KDF Water Filter Replacement Cartridge Pack Set (F2US21B)
  • As the official replacement filter set for iSpring direct connect undersink water filtration system US21B, this economical filter pack consists of one 10"x4.5" CTO carbon block filter(FC15B) and one 10"x4.5" GAC+KDF water filter(FG15B-KS). 
  • 1st stage FG15B-KS 10” x 4.5” compound filter is designed to remove chlorine, lead, iron, mercury, hydrogen sulfide, THMs, chloride, chloramines, herbicides, nitrate, odors, and other contaminants.
  • Using high quality coconut shell carbon and highly compact fabrication tech, 2nd stage CTO filter FC15B knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides and industrial solvents and other contaminants like trihalomethanes.
  • Individually sealed for freshness. Depending on source water quality, replace the filters every 8-12 months to achieve optimal performance. Please refer to our manual and our helpful YouTube videos for filter change tips if needed.
  • The under counter water system this filter pack works for is NOT designed to reduce Total Dissolved Solids(TDS) removal and instead keeps essential minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring Reverse Osmosis (RO) systems such as RO500, RCC7, RO100 and more.
  • Your risk-free shopping experience is backed by a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA.
  • $65.99
    iSpring F2WGB21B Whole House 4.5"x10" Water Filtration Big Blue Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set for WGB21B (F2WGB21B)
    • iSpring 5-micron polypropylene sediment filter (FP15B) captures dirt, sand, silt, dust, rust, and scale particles and extends the life of CTO carbon block filter.

    • Using quality coconut shell carbon and compact fabrication tech, iSpring CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is effective on herbicides and industrial solvents and other contaminants like trihalomethanes.

    • This filter pack can filter up to 50,000 gallons depending on the use and feed water quality. Replace the filters every 3-6 months to achieve ideal performance. Fine PP sediment filter and quality CTO filter not only bring clean and refreshing water to every faucet in your home, but also help prolong the lives of your water-using appliances and protect plumbing from sediment and scale buildup.

    • This filter pack consists of 1x 10"x4.5"Sediment Filter(FP15B) and 1x 10"x4.5" CTO filter(FC15B). Fits standard 10" big blue whole house water filtration systems. Individually sealed for freshness.

    • Your worry-free shopping experience is backed by a 30-day money-back guarantee, extended manufacturer warranty, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.

    Out of Stock
    $49.99
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