Best 20 Water Filter Cartridge in 2022 [*Top Picks*]

Looking for the best 20 water filter cartridge on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

5904 Reviews Scanned

  • Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch
    Bestseller #1
    Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch (386)
      Whole House Water Filter System: Reduce harmful impurities from your entire home’s water with Express Water’s 3 Stage Water Filtration System and easy to replace Water Filter Replacement Cartridges. Long Lasting Water Filtration: The highest quality, long-lasting materials give you up to 100,000 gallons of water filtration depending on incoming water quality. Heavy Metal Water Filter: Protect your home from dangerous impurities with the advanced KDF heavy metal filter which combines catalytic carbon and high purity ionically charged copper and zinc granules to reduce Heavy Metals, Iron, Lead, Nickel, Chromium and more Save Time and Money: High-capacity filters will efficiently and effectively filter your water without loss of pressure. Please be informed - Whole house systems are installed at the main water supply line for the purpose of treating all incoming water in your home or business. Unlike reverse osmosis systems, whole house systems will NOT reduce Total Dissolved Solids (TDS). If you are searching for a filter that reduces TDS, see our Express Water Reverse Osmosis systems. Easy to Replace Water Filter Cartridges: All Express Water whole house water filter replacement cartridges are designed for quick and easy replacement to keep your system up and running. Sediment Filter: Keep the most damaging sediments out of your water with Express Water’s 4-layer smart water filter design. Catch and filter the largest impurities in the filter’s outer layers while inner layers catch the finer impurities giving you the longest lasting and effective water filtration system for your home. Carbon Water Filter: Efficient tight packed carbon granules give you the efficient high capacity filtration you need in your whole home water filtration system. Vacuum heated organic coconut shell carbon provides an added layer of filtration with the freshest taste. Take Care of Your Home: Protect our plants, give healthier water to your pets and extend the life of your dishwasher, laundry machine, and other appliances through proper and efficient 3-stage water filtration. On Demand Support: Support from experts who can answer any of your questions about your replacement water filters. Trust Express Water: Choose the best filters for home filtration and make your house a clean water house today!
  • iSpring FP25X25 High Capacity 20” x 2.5” Water Replacement Cartridges Fine Sediment Filter, 5 Micron, 25 Count (Pack of 1), White
    Bestseller #1
    iSpring FP25X25 High Capacity 20” x 2.5” Water Replacement Cartridges Fine Sediment Filter, 5 Micron, 25 Count (Pack of 1), White (386)
      Protect Your Family and Household Appliance from Sediments: The FP25 sediment filters are specially designed to remove sediments, dust, sand, large particles, silt, dirt, and rust from water. They are usually used as the first stage of a water filtration system to prevent the filters that follow from getting clogged too soon. This filter can also be used for pool and hottub. Standard Size: Our filter fits standard 20” x 2.5” housings, including brand name models. Top-Notch Quality: The FP25 high capacity polypropylene sediment filter is able to achieve filtration down to 5 microns. The filters are tested by an independent third-party to meet NSF/ANSI standards. They 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). The 20” x 2.5” filter cartridges have a minimum impact on water flow (up to 12 GPM) and require minimum maintenance. 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), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.
  • 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 , White (Pack of 1)
    Bestseller #1
    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 , White (Pack of 1) (386)
      [Whole House Water Filter that Protects Your Family and Household Appliance from Iron, Manganese, and More] Our iron water filter (FM25B) is specially designed for iron & manganese removal, reducing iron (MAX 3.0 ppm) and manganese (MAX 1.0 ppm). It lasts up to 3 times longer than greensand due to the catalytic media not being consumed in the process. The whole house water filter set also removes sediment, chlorine, rust, herbicides, industrial solvents, and various other contaminants. [Whole House Filter with Standard Size] Our water filter set fits standard housings that require 20” x 4.5” whole house water filter cartridges, including brand name models. The 20” x 4.5” whole house water filter replacement cartridges have a minimum impact on water flow (up to 15 GPM) and require minimum maintenance. [Top-Notch Whole Home Water Filter] The 1st stage high capacity polypropylene sediment filter achieves filtration down to 5 micron. The 2nd stage carbon block water filter is made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. Both water filters are tested by an independent third-party to meet NSF/ANSI standards. Both water filters have a capacity of 100,000 gal. 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 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 whole house water filter replacement cartridges are individually wrapped to ensure freshness. Please unwrap before use. For well/pond water with very high iron/manganese please check out iSpring WCFM500K or WCFM400K whole house water filters. Unlike an RO membrane, these whole home water filters don’t reduce Total Dissolved Solids (TDS), and instead keep healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring RO systems.
  • Aquaboon 5 Micron 20
    Bestseller #1
    Aquaboon 5 Micron 20" Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with AP810-2, SDC-45-2005, FPMB5-20, P5-20, FP25B, 155358-43, 2 Pack (1046)
      πŸ’§ [Dimensions] 20 inches x 4.5 inches - 2-PACK Of 5 Micron Sediment Water Filter. Universal replacement - fits most 20 inch Water Filter housings. πŸ’§ [Quality Filtration] Made of thermally bonded 100% Pure POLYPROPYLENE Microfibers. Whole house sediment filtration. Contains no binders, agents, solvents, antistatic materials or wetting agents. 5 zones of filtration to ensure quality and remove more contaminants, large and fine particles from a drinking water, such as sand, dirt, silt, and rust particles. πŸ’§ [Lifetime] 4 - 6 months / 20000 - 30000 gallons (depending on the water quality). Replace for great taste of your water. πŸ’§ [Compatible Replacement Filters] Aqua Sun International SWS-BB, AquaPure AP810-2, AXEON Membranes 200640, ClearChoice 84644, Everpure EV910837, Filter Specialist CMMF0520-45W1, FreshWaterSystems MBGC-45200-05, Heritage Parts TMP5618907, Hydronix SDC-45-2005, SDG-45-2005, iSpring FP25B, Liquatec SDF-45-2005, Neo-Pure MBGC-45200-05, Pentair DEV910837, EV910837, P5-20BB, Pentek 155358-43, P5-20BB, Pura 33003117, Sterilight CMB-520-HF, Valuetrex VX05-20BB, Watts FPMB-BB5-20, etc. πŸ’§ [COMPATIBLE HOUSINGS] 3M 70020143163, AquaPure AP802, AP802-1.5, Cuno 5557610, CFS02T. Systems from 3M, DuPont, APEC, Whirlpool, Olympia, US Aqua, Pentek, Aquasana, Culligan, Costway, GE, Smart Aqua Life, Geekpure, The Perfect Water, Glacier Bay, Aqua-Pure, Global Water, etc.
  • Aquaboon 5 Micron 20
    Bestseller #1
    Aquaboon 5 Micron 20" x 4.5" CTO Carbon Block & Sediment Replacement Filter Cartridges Set | 2 set, 4PK COMPATIBLE WITH: FC25BX4, 32-450-20-GREEN, EP20-BB, 2C-20BB, 155358-43, DGD-5005-20, 33003117-1 (1046)
      πŸ’§ [HEALTHY SET] Our set of Sediment and Carbon filter cartridges will help you to keep your water purified and fresh. Carbon filters work on the basis of the absorption process and sediment filters provides mechanical filtration. Our Filter Cartridges has been thoroughly tested and verified to meet health and product standards. Make your home uncontaminated by removing chlorine and other harmful industrial chemicals - drink the water knowing that it is 100% safe. πŸ’§ [CARBON] Activated carbon water filter comes in sealed packaging, so you can be sure that it will not go to waste, it will works better and lasts longer. This durable coconut shell activated carbon water filters is mainly designed to remove volatile organic compounds, in particular chlorine. It will also help you get rid of chemicals such as pesticides and herbicides. By installing a carbon filter, you can forget about unpleasant taste and smell. πŸ’§ [SEDIMENT] 100% pure POLYPROPYLENE. Quality mechanical filtration ensure to remove more contaminants, large and small particles from drinking water, such as sand, dirt, sludge, and rust particles. It has the advantage of having layers with graded density, it's a sieve with porosity that allows only water to pass through. The inner core of a Sediment filter cartridge is denser than the outer core, which allows the product to trap finer and finer particles, thereby making it serve longer. πŸ’§ [COMPATIBLE CARBON CARTRIDGES] BLUONICS BLCTO20X2, BLCTO20X4, ClearChoice CCS031, Express Water FLTWH2045C, FLTWH2045C02, Geekpure BC20-BB-5, Harmsco HAC-BB-20-W, iSpring FC25BX4, KX Matrikx 32-450-20-GREEN, KX-MATRIKX-CTO2-HD20, Pentek 255678-43, EP20-BB, Purenex 2C-20BB, Ronaqua 2C-20BB, 6C-20BB, RA-2CTO-20BB, Tier1 EP5-20BB, FHR-20-45-CARBON-KIT, COMIN16JU023031, Water Filters Depot (WFD) WF-CB205-BB, Wholesale Market LLC BBCTO-20B4, CTO20B4, MAX WATER USA Inc. 104114-4, etc. πŸ’§ [COMPATIBLE SEDIMENT CARTRIDGES] 3M Aqua-Pure 5618903, AP810-2, BLUONICS PP-20B4, ClearChoice CCS034, Filter Specialist CMMF0520-45W1, H2O LF-PP-005-508, iSpring FP25B, FP25BX2, Liquatec SDF-45-2005, Neo-Pure MBGC-45200-05, Pentek 155358-43, CWD-PENTEK-DGD-5005-20, DGD-5005-20, Pura 33003117-1, Purenex 4S-20B-5M, Ronaqua 10S-20BB5, BBSED-20B4, 2C-20BB5, SpiroPure SP-DD-5005-20BB, Tier1 P5-20BB, Valuetrex VX05-20BB, Viqua CMB-520-HF, Watts FPMB-BB5-20, WholesalemarketLLC PP-20B10, etc.
  • Express Water – Whole House Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Charcoal, Carbon High Capacity Cartridge Filters – 5 Micron Water Filter – 4.5” x 20” inch
    Bestseller #1
    Express Water – Whole House Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Charcoal, Carbon High Capacity Cartridge Filters – 5 Micron Water Filter – 4.5” x 20” inch (386)
      Whole House Water Filter System: Reduce harmful impurities from your entire home’s water with Express Water’s 3 Stage Water Filtration System and easy to replace Water Filter Replacement Cartridges. Long Lasting Water Filtration: The highest quality, long-lasting materials give you up to 100,000 gallons of water filtration depending on incoming water quality. Take Care of Your Home: Protect our plants, give healthier water to your pets and extend the life of your dishwasher, laundry machine, and other appliances through proper and efficient 3-stage water filtration. Save Time and Money: High-capacity filters will efficiently and effectively filter your water without loss of pressure. Easy to Replace Water Filter Cartridges: All Express Water whole house water filter replacement cartridges are designed for quick and easy replacement to keep your system up and running. Sediment Filter: Keep the most damaging sediments out of your water with Express Water’s 4-layer smart water filter design. Catch and reduce the largest impurities in the filter’s outer layers while inner layers catch the finer impurities giving you the longest lasting and effective water filtration system for your home. GAC Carbon Water Filter: Efficient tight packed carbon granules give you the efficient high capacity filtration you need in your whole home water filtration system. Laboratory vacuum heated organic coconut shell carbon provides an added layer of filtration with the freshest taste. Standard Water Filter: Our home water filter reduces over 52 different impurities from your water including chlorine, rust, and more. Please be informed - Whole house systems are installed at the main water supply line for the purpose of treating all incoming water in your home or business. Unlike reverse osmosis systems, whole house systems will NOT reduce Total Dissolved Solids (TDS). If you are searching for a filter that removes TDS, we recommend our Express Water Reverse Osmosis systems. On Demand Support: Support from experts who can answer any of your questions about your replacement water filters
  • Aquaboon 5 Micron 20
    Bestseller #1
    Aquaboon 5 Micron 20" x 4.5" CTO Carbon Block & Sediment Replacement Filter Cartridges Set | 4 set, 8PK COMPATIBLE WITH: FC25BX4, 32-450-20-GREEN, EP20-BB, 2C-20BB, 155358-43, DGD-5005-20, 33003117-1 (1046)
      πŸ’§ [HEALTHY SET] Our set of Sediment and Carbon filter cartridges will help you to keep your water purified and fresh. Carbon filters work on the basis of the absorption process and sediment filters provides mechanical filtration. Our Filter Cartridges has been thoroughly tested and verified to meet health and product standards. Make your home uncontaminated by removing chlorine and other harmful industrial chemicals - drink the water knowing that it is 100% safe. πŸ’§ [CARBON] Activated carbon water filter comes in sealed packaging, so you can be sure that it will not go to waste, it will works better and lasts longer. This durable coconut shell activated carbon water filters is mainly designed to remove volatile organic compounds, in particular chlorine. It will also help you get rid of chemicals such as pesticides and herbicides. By installing a carbon filter, you can forget about unpleasant taste and smell. πŸ’§ [SEDIMENT] 100% pure POLYPROPYLENE. Quality mechanical filtration ensure to remove more contaminants, large and small particles from drinking water, such as sand, dirt, sludge, and rust particles. It has the advantage of having layers with graded density, it's a sieve with porosity that allows only water to pass through. The inner core of a Sediment filter cartridge is denser than the outer core, which allows the product to trap finer and finer particles, thereby making it serve longer. πŸ’§ [COMPATIBLE CARBON CARTRIDGES] BLUONICS BLCTO20X2, BLCTO20X4, ClearChoice CCS031, Express Water FLTWH2045C, FLTWH2045C02, Geekpure BC20-BB-5, Harmsco HAC-BB-20-W, iSpring FC25BX4, KX Matrikx 32-450-20-GREEN, KX-MATRIKX-CTO2-HD20, 255678-43, EP20-BB, Purenex 2C-20BB, Ronaqua 2C-20BB, 6C-20BB, RA-2CTO-20BB, Tier1 EP5-20BB, FHR-20-45-CARBON-KIT, COMIN16JU023031, Water Filters Depot (WFD) WF-CB205-BB, Wholesale Market LLC BBCTO-20B4, CTO20B4, MAX WATER USA Inc. 104114-4, etc. πŸ’§ [COMPATIBLE SEDIMENT CARTRIDGES] 3M Aqua-Pure 5618903, AP810-2, BLUONICS PP-20B4, ClearChoice CCS034, Filter Specialist CMMF0520-45W1, H2O LF-PP-005-508, iSpring FP25B, FP25BX2, Liquatec SDF-45-2005, Neo-Pure MBGC-45200-05, 155358-43, CWD--DGD-5005-20, DGD-5005-20, Pura 33003117-1, Purenex 4S-20B-5M, Ronaqua 10S-20BB5, BBSED-20B4, 2C-20BB5, SpiroPure SP-DD-5005-20BB, Tier1 P5-20BB, Valuetrex VX05-20BB, Viqua CMB-520-HF, Watts FPMB-BB5-20, WholesalemarketLLC PP-20B10, etc.
  • Aquaboon 5 Micron 20
    Bestseller #1
    Aquaboon 5 Micron 20" Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with AP810-2, SDC-45-2005, FPMB-BB5-20, P5-20BB, FP25B, 155358-43, 6 Pack (1046)
      πŸ’§ [Dimensions] 20 inches x 4.5 inches - 6-PACK Of 5 Micron Sediment Water Filter. Universal replacement - fits most 20 inch Water Filter housings. πŸ’§ [Quality Filtration] Made of thermally bonded 100% Pure POLYPROPYLENE Microfibers. Whole house sediment filtration. Contains no binders, agents, solvents, antistatic materials or wetting agents. 5 zones of filtration to ensure quality and remove more contaminants, large and fine particles from a drinking water, such as sand, dirt, silt, and rust particles. πŸ’§ [Lifetime] 4 - 6 months / 20000 - 30000 gallons (depending on the water quality). Replace for great taste of your water. πŸ’§ [Compatible Replacement Filters] Aqua Sun International SWS-BB, AquaPure AP810-2, AXEON Membranes 200640, ClearChoice 84644, Everpure EV910837, Filter Specialist CMMF0520-45W1, FreshWaterSystems MBGC-45200-05, Heritage Parts TMP5618907, Hydronix SDC-45-2005, SDG-45-2005, iSpring FP25B, Liquatec SDF-45-2005, Neo-Pure MBGC-45200-05, Pentair DEV910837, EV910837, P5-20BB, 155358-43, P5-20BB, Pura 33003117, Sterilight CMB-520-HF, Valuetrex VX05-20BB, Watts FPMB-BB5-20, etc. πŸ’§ [COMPATIBLE HOUSINGS] 3M 70020143163, AquaPure AP802, AP802-1.5, Cuno 5557610, CFS02T. Systems from 3M, DuPont, APEC, Whirlpool, Olympia, US Aqua, Aquasana, Culligan, Costway, GE, Smart Aqua Life, Geekpure, The Perfect Water, Glacier Bay, Aqua-Pure, Global Water, etc.
  • Pentair Pentek DGD-5005-20 Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20
    Bestseller #1
    Pentair Pentek DGD-5005-20 Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Dual-Gradient Density Spun Polypropylene Replacement Filter Cartridge, 20" x 4.5", 5 Micron (419)
      KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" sediment filter cartridge. ACHIEVES UP TO 3XΒ  the dirt holding capacity of similar size sediment cartridges NSF CERTIFIED for your peace of mind REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or quality
  • Aquaboon Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 20 inch Cartridge | Compatible with EPM-20, CB-20, 155783-43, FC25B 2-PACK
    Bestseller #1
    Aquaboon Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 20 inch Cartridge | Compatible with EPM-20, CB-20, 155783-43, FC25B 2-PACK (1046)
      πŸ’§ [COMPLETELY CLEAN WATER] Make your home contamination-free by removing chlorine and other harmful industrial chemicals - Now you can drink water knowing it is 100% safe. πŸ’§ [ULTRA-HIGH GRADE FILTRATION] Our pure water coconut carbon filter is extensively tested and verified to meet health and product standards. Have a piece of mind knowing your water is purified with the superior Aquaboon filtration system. πŸ’§ [UNIVERSAL 20-INCH REPLACEMENT] Elegantly designed at 4.5” x 20”, it will fit all standard 20 inch Whole House filtration systems of 3M, GE, Culligan, ClearChoice, Dupont, Pentek, Omni, Hydronix, Trojan, Kenmore, Omnifilter, Pelican, Whirlpool, Watts, iSpring, Filtrete, etc. Your easy and smart coconut shell carbon filter. πŸ’§ [LONG LASTING] Your carbon block activated water filter comes in an airtight packaging, so you can trust it won’t go to waste, works better and lasts longer. Enjoy long-lasting coconut shell activated carbon water filters. Aquaboon – your smartest coconut shell water filter solution! Lifetime - 6 month (Replace once or twice times a year, depending on the water quality). πŸ’§ [Compatible Replacement Filters] ClearChoice 84642, 84641, Pelican CB-20, Pentek 155783-43, EPM-20, CBC-20, Trojan CB-20, iSpring FC25B, Hydronix CB-45-2005, CB-45-2010, Watts WCBCFF20, etc.
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