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$149.99
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.
  • $119.99
    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 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.

    $49.99
    iSpring F2WGB22B 4.5” x 20” Whole House Water Filter Replacement Set - One Sediment Cartridge and One Carbon Block Cartridge - Fits WGB22B - Reduces up to 99% Chlorine (F2WGB22B)
  • [Protect Your Family and Household Appliance from Sediment, Chlorine, and More] Say goodbye to smelly, bad tasting water! Our filters are specially designed to remove up to 99% of chlorine from water as well as sediment, 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 polypropylene sediment filter is able to achieve filtration down to 5 microns. The second stage CTO Carbon Block filter is made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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.
  • $89.99
    iSpring F2WGB22BPB 4.5” x 20” Whole House Water Filter Replacement Set - One Carbon Block Cartridge and One Lead Reducing Cartridge - Fits WGB22B-PB (F2WGB22BPB)
  • [Protect Your Family and Household Appliance from Lead and More] Our filter (FCRC25B) is specially designed for reducing lead. This filter features a high capacity of 15,000 ppm for lead, reducing lead to below 15 ppb (the EPA standard for drinking water). Together with the carbon block filter, 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. 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.
  • $169.99
    iSpring F3WCB32 2.5” x 20” Whole House Water Filter Replacement Set - One Sediment Cartridge and Two Carbon Block Cartridges - Fits WCB32C & WCB32O - Reduces up to 99% Chlorine (F3WCB32)
  • Protect Your Family and Household Appliance from Sediment, Chlorine, and More: Say goodbye to smelly, bad tasting water! Our filters are specially designed to remove up to 99% of chlorine from water as well as sediment, rust, herbicides, industrial solvents, and various other contaminants.
  • DIY Installation and Maintenance: Refer to our manual and our helpful YouTube videos for DIY installation. Our filter set fits standard 20” x 2.5” housings, including brand name models.
  • The first stage high capacity sediment filter is able to achieve filtration down to 5 microns. The second and third stage CTO Carbon Block filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year (depending on your water quality)
  • Peace of Mind Customer Service: Register online to activate your extended 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. 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.
  • $67.99
    iSpring F3WGB32B 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack Set with Sediment and Carbon Block Cartridges Reduces up to 99% Chlorine (F3WGB32B)
  • [Protect Your Family and Household Appliance from Sediment, Chlorine, and More] Say goodbye to smelly, bad tasting water! Our filters are specially designed to remove chlorine from water as well as sediment, rust, herbicides, industrial solvents, and various other contaminants.
  • [DIY Installation and Maintenance] Refer to our manual and our helpful YouTube videos for easy 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 high capacity polypropylene sediment filter is able to achieve filtration down to 5 micron. The second and third stage CTO Carbon Block filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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. 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.
  • $109.99
    iSpring F3WGB32BM 4.5” x 20” 3-Stage Whole House Water Filter Set Replacement Pack with Sediment, CTO Carbon Block, and Iron & Manganese Reducing Cartridges, Fits WGB32BM (F3WGB32BM)
  • [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 set 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 high capacity polypropylene sediment filter is able to achieve filtration down to 5 micron. The second stage CTO Carbon Block filter is made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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.
  • $139.99
    iSpring F3WGB32BPB 4.5” x 20” 3-Stage Whole House Water Filter Replacement Pack Set with Sediment, Carbon Block, and Lead Reducing Cartridges, Fits WGB32B-PB (F3WGB32BPB)
  • [Protect Your Family and Household Appliance from Lead and More] Our filter (FCRC25B) is specially designed for reducing lead. This filter features a high capacity of 15,000 ppm for lead, reducing lead to below 15 ppb (the EPA standard for drinking water). Together with the sediment filter and carbon block filter, the filter set 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. The filter set fits standard 20” x 4.5” housings, including brand name models.
  • The first stage high capacity polypropylene sediment filter is able to achieve filtration down to 5 micron. The second CTO Carbon Block filters is made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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. 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. 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.
  • $199.99
    iSpring F4WGB21B Whole House 4.5"x10" Water Filtration Big Blue Sediment and CTO Carbon Block Water Filter Replacement Cartridge Pack Set for WGB21B (F4WGB21B)
    • 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 100,000 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 2x 10"x4.5"Sediment Filters(FP15B) and 2x 10"x4.5" CTO filters(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.

    $89.99
    iSpring F4WGB22B 4.5” x 20” Whole House Water Filter Replacement Set - Two Sediment Cartridges and Two Carbon Block Cartridges - Fits WGB22B - Reduces up to 99% Chlorine - Pack of 2 Sets (F4WGB22B)
  • [Protect Your Family and Household Appliance from Sediment, Chlorine, and More] Say goodbye to smelly, bad tasting water! Our filters are specially designed to remove up to 99% of chlorine from water as well as up to 95% of sediment, 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 polypropylene sediment filter is able to achieve filtration down to 5 microns. The second stage CTO Carbon Block filter is made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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. 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.
  • $149.99
    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 (F4WGB22BM)
  • [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
    iSpring F4WGB22BPB 4.5” x 20” Whole House Water Filter Replacement Set - Two Carbon Block Cartridges and Two Lead Reducing Cartridges - Fits WGB22B-PB - Pack of 2 Sets (F4WGB22BPB)
  • [Protect Your Family and Household Appliance from Lead and More] Our filter (FCRC25B) is specially designed for reducing lead. This filter features a capacity of 15,000 ppm for lead, reducing lead to below 15 ppb (the EPA standard for drinking water). Together with the carbon block filter, 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 high-quality coconut shell carbon to increase filtration efficiency and etend 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. 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. 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.
  • $299.99
    iSpring F6WGB32B 4.5” x 20” Whole House Water Filter Replacement Set - Two Sediment Cartridges and Four Carbon Block Cartridges - Fits WGB32B - Reduces up to 99% Chlorine - Pack of 2 Sets (F6WGB32B)
  • [Protect Your Family and Household Appliance from Sediment, Chlorine, and More] Say goodbye to smelly, bad tasting water! Our filters are specially designed to remove up to 99% of chlorine from water as well as sediment, 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 polypropylene sediment filter is able to achieve filtration down to 5 microns. The second and third stage CTO Carbon Block filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. Both are tested by an independent third-party to meet NSF/ANSI standards. Both filters have 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. 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.
  • $199.99
    iSpring FC15B 5-Micron Coconut Shell Activated CTO Carbon Block Water Filter Replacement Cartridge for Under Sink Water Filter and Whole House Water Filtration Systems, 4.5" x 10" (FC15B)

    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.

    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" big blue whole house and undersink water filtration systems. Official 2nd stage Carbon Block replacement filter cartridge for iSpring Under Sink Water Filtration System US21B as well as Whole House Water Filtration System WGB21B; 1st stage replacement filter cartridge for WGB21BM and WGB21B-PB. Individually sealed for freshness.

    Your worry-free 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.


    $35.39
    iSpring FC25 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C & WCB32O Whole House Water Filtration Systems and RCB3P Reverse Osmosis System (FC25)
  • Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25 carbon block filter is specially designed to remove up to 99% of chlorine from water as well as various other contaminants that cause unpleasant odors and tastes.
  • Standard Size: Our filter set fits standard 20” x 2.5” housings, including brand name models.
  • Our FC25 CTO Carbon Block filters are made of coconut shell carbon to increase filtration efficiency and extend filter life. They are tested by an independent third-party to meet NSF/ANSI standards. The filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year. Water flow: up to 12 GPM.
  • Peace of Mind Customer Service: Register online to activate your extended 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. 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.
  • $32.09
    iSpring FC25B 20” x 4.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits Standard 20” x 4.5” Whole House Water Filtration Systems - Reducing up to 99% Chlorine - Pack of 1 (FC25B)
  • Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25B carbon block filter is specially designed to remove up to 99% of chlorine from water as well as taste and odor compounds.
  • Standard Size: Our filter set fits standard 20” x 4.5” housings, including brand name models.
  • Our FC25B CTO Carbon Block filters are made of coconut shell activated carbon to increase filtration efficiency and extend filter life. Activated carbon is an effective adsorbent because it is a porous material and provides a large surface area to which contaminants may adsorb. They are tested by an independent third-party to meet NSF/ANSI standards. Water flow: up to 15 GPM.
  • 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. 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.
  • $51.99
    iSpring FC25BX2 20” x 4.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits Standard 20” x 4.5” Whole House Water Filter Systems - Reducing up to 99% Chlorine - Pack of 2 (FC25BX2)
  • Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25B carbon block filter is specially designed to remove up to 99% of chlorine from water as well as taste and odor compounds.
  • Standard Size: Our filter set fits standard 20” x 4.5” housings, including brand name models.
  • Our FC25B CTO Carbon Block filters are made of coconut shell activated carbon to increase filtration efficiency and extend filter life. Activated carbon is an effective adsorbent because it is a porous material and provides a large surface area to which contaminants may adsorb. They are tested by an independent third-party to meet NSF/ANSI standards. Water flow: up to 15 GPM.
  • 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. 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.
  • $75.99
    iSpring FCRC15B Lead Reducing Replacement Water Filter, 10"x4.5" (FCRC15B)
  • This filter (FCRC15B) is specially designed for lead reducing. It features a filtration capacity of up to 80, 000 gallons of water, reducing lead level from 100 ppb to 15 ppb (the EPA standard for drinking water) and less.
  • Being the official 2nd stage filter for iSpring WGB21B-PB, FCRC15B also fits standard 10” x 4.5” housings from most brand name models.
  • The cartridge lasts up to 3 times longer than conventional media. It also has little impact on water flow (up to 15 GPM) and requires little maintenance.
  • Backed by a 30-day money-back guarantee and extended manufacturer warranty upon warranty registration at iSpring. Lifetime tech support(678-261-7611) from Atlanta, GA USA.
  • Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS), and instead keeps minerals in your water. If you are interested in a filter that removes TDS, please consider our iSpring RO systems.
  • $85.99
    iSpring FCRC25B Big Blue 20” x 4.5” Water Filter Replacement Cartridge Lead Reducing (FCRC25B)
  • Protect Your Family and Household Appliance from Lead: Our filter (FCRC25B) is specially designed for reducing lead. This filter features a capacity of 15, 000 ppm for lead, reducing lead to below 15 ppb (the EPA standard for drinking water).
  • Standard Size: Our filter fits standard 20” x 4. 5” housings, including brand name models.
  • Peace of Mind Customer Service: Register online to activate your manufacturer 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. 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.
  • $149.99
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