Top 10 4.5 x 20 Water Filter – Replacement Under-Sink Water Filters

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1. iSpring

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White, 2 Count, 2 pieces / 5 microns, iSpring FP25BX2 High Capacity 20” x 4.5” Water Replacement Cartridges Fine Sediment Filters

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iSpring #ad - Unlike an ro membrane, the filters don’t reduce Total Dissolved Solids TDS, and instead keeps healthy minerals in your water. The filters are tested by an independent third-party to meet NSF/ANSI standards. 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. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis RO systems. Protect your family and household appliance from sediments: the fp25b sediment filters are specially designed to remove sediments, large particles, dust, silt, sand, dirt, and rust from water.

Standard size: our filter fits standard 20” x 4. 5” housings, including brand name models. They have a capacity of 100, 000 gallons of water, enough to supply a family of four with clean water for a full year depending on your water quality. Top-notch quality: the fp25b high capacity polypropylene sediment filter is able to achieve filtration down to 5 microns. We are happy to help! Please note: the cartridges are individually wrapped to ensure freshness. The 20” x 4.
BrandiSpring #ad
ManufacturerPurenex #ad
Height6 Inches
Length20 Inches
Weight1 Pounds
Width10 Inches
Part NumberFP25BX2-FBA
ModelFP25BX2

2. Express Water

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Express Water – 2 Pack Water Filter Activated Carbon Block Replacement Filter – ACB Large Capacity Water Filter – Whole House Filtration – 5 Micron Water Filter – 4.5” x 20” inch

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Express Water #ad - Universal standard size water filters: take the guessing out of replacing your water filters. Coconut carbon provides an added layer of filtration with the freshest taste. Express water’s 5 micron activated Carbon Block ACB Filter 2 Pack, 4.

5” x 20” size fits all standard 4. 5” x 20” whole home water filter system housings. 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. Carbon water filter: efficient tight packed carbon granules give you the efficient high capacity filtration you need in your whole home water filtration system.

Whole house water filter system: eliminate harmful contaminants from your entire home’s water with Express Water’s Water Filtration System and easy to replace Water Filter Replacement Cartridges. On demand support: support from experts who can answer any of your questions about your Express Water water filter system. The highest quality, long-lasting materials give you up to 100, 000 gallons of water filtration.
BrandExpress Water #ad
ManufacturerExpress Water #ad
Height4.5 Inches
Length20 Inches
Weight10 Pounds
Width4.5 Inches
Part NumberFLTWH2045C02
ModelFLTWH2045C02

3. Aquaboon

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ECP1-20BB, Aquaboon 5 Micron 20" Pleated Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with ECP5-BB, AP810-2, SPC-45-1005, 2-Pack, HDC3001, CP5-BB

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Aquaboon #ad - Fits most 20 inch Whole House systems. Universal replacement - fits most 20 inch Water Filter housings. Replace for great taste of your water. Lifetime 4 - 6 months / 20000 - 30000 gallons depending on the water quality. Contains no binders, such as sand, solvents, dirt, large and fine particles from a drinking water, antistatic materials or wetting agents.

Quality filtration made of 100% pure polypropylene microfibers. Compatible filters and housings liquatec spf-45-1005, ecp5-20bb, spf-45-2005, 255494-43, watts fm-bb-20-5, pentek 255490-43, ps-45200-01, pbb-p20-5, pelican pbbb-p20-5, pbb-p20-1, ps-45200-05, ecp5-bb, purwater pc05-bb-s, wpc1ff20, ECP1-20BB, shurflo 15-054-02, pwpl20bbm5, neo-pure ps-45097-05, 255493-43, etc. Dimensions 20 inches x 4. 5 inches - 2-pack of 5 micron pleated Sediment Water Filter. Pleated cartridge provides “depth” filtration and remove more contaminants, agents, and rust particles.

Whole house sediment filtration. Compatible replacement filters ace hardware 4021341, freshwatersystems ps-45097-05, wb-hb-20-5w, w5cphd, cuno cfs210-2, dupont hdc3001, wb-hb-20-1w, american plumber 155184-51, cp5-bbsa, hb-20-5w, aquapure ap810-2, flowmax fm-bb-20-1, 84647, culligan 155184, rs-15, clearchoice 84634, spc-45-2001, FreshWaterSystems PS-45200-05, omnifilter rs15, Harmsco HB-20-1W, spc-45-2005, ametek cp5-bb, CP5-BBS, cp5-bb, ps-45200-01, 84646, hydronix spc-45-1005, Keystone GPC5. This cartridge is pleated, silt, it provides increased surface area and longer filter life.
BrandAquaboon #ad
ManufacturerAquaboon #ad
Height4.8 Inches
Length20 Inches
Weight3 Pounds
Width8.82 Inches
Part Numberunknown

4. Express Water

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Express Water – 10 Pack Sediment Replacement Filter – Whole House Replacement Water Filter – SED High Capacity Water Filter – 5 Micron Water Filter – 4.5” x 20” inch

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Express Water #ad - Reliable water filtration: help your business prevent costly build up of rust and other damaging sediments, extend the life of your home appliances, give healthier water to your pets, reduce the energy cost, and more with Express Water’s whole home filtration systems. Express water replacement Filters: Express Water has all your whole house filtration needs covered.

Sediment water filter: protect your home from sediment damage while improving the quality and taste of your water. Whole house water filter system: reduce harmful impurities from your entire home’s water with Express Water’s 3 Stage whole house water filtration system and easy to replace water filter replacement cartridges. 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. On demand support: support from experts who can answer any of your questions about your Express Water whole home water filter system.

With specially engineered high flow filtration you can have crisp clean drinking water from any faucet with no drop in your water pressure. Long lasting water filtration: sediment replacement water filters have a life cycle of 100, 000 gallons or 6–12 months depending on incoming water quality, providing your home with reliable whole home water filtration. High quality whole home water filter: Express Water’s sediment replacement filter means no more worrying about your home’s water. Express water’s whole house replacement filters fit all standard 4. 5” x 20” whole home water filter system housings.
BrandExpress Water #ad
ManufacturerExpress Water #ad
Height4.5 Inches
Length20 Inches
Width4.5 Inches
Part NumberFLTWH2045S10
ModelFLTWH2045S10

5. iSpring

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ISpring FC25B Whole House Water Filter Replacement Cartridge, 20” x 4.5”, CTO Carbon Block

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iSpring #ad - Standard size: our filter set fits standard 20” x 4. They are tested by an independent third-party to meet NSF/ANSI standards. Please unwrap the cartridges before use. Unlike an ro membrane, and instead keeps healthy minerals in your water. 5” filter cartridges have a minimum impact on water flow up to 15 GPM and require minimum maintenance.

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. We are happy to help! Please note: the cartridges are individually wrapped to ensure freshness. Activated carbon is an effective adsorbent because it is a highly porous material and provides a large surface area to which contaminants may adsorb. The 20” x 4. Protect your family and household appliance from chlorine and more: say goodbye to smelly, taste and odor compounds, bad tasting water! The FC25B carbon block filter is specially designed to remove up to 99% of chlorine from water as well as various natural organic compounds, and synthetic organic chemicals.

We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. Top-notch quality: our fc25b cto carbon block filters are made of high-quality coconut shell activated carbon for maximum filtration efficiency and filter life. S. Local support team.
BrandiSpring #ad
ManufactureriSpring #ad
Height20 Inches
Length4.5 Inches
Weight5.2 Pounds
Width4.5 Inches
Part NumberFC25B
ModelFC25B

6. Express Water

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Express Water FLTWH2045CGS1 Whole House Replacement Water Filter Set, 20" x 4.5", White

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Express Water #ad - 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. Sediment filter: keep the most damaging sediments out of your water with Express Water’s 4-layer smart water filter design. Laboratory vacuum heated organic coconut shell carbon provides an added layer of filtration with the freshest taste.

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. On demand support: support from experts who can answer any of your questions about your replacement water filters. 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. 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.

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. 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. Standard water filter: our home water filter reduces over 52 different impurities from your water including chlorine, rust, and more.
BrandExpress Water #ad
ManufacturerExpress Water #ad
Height4.5 Inches
Length20 Inches
Weight14.5 Pounds
Width4.5 Inches
Part NumberFLTWH2045CGS1
ModelFLTWH2045CGS1

7. Express Water

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Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch, Carbon Block

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Express Water #ad - Laboratory vacuum heated organic coconut shell carbon provides an added layer of filtration with the freshest taste. 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.

On demand support: support from experts who can answer any of your questions about your replacement water filters. 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. If you are searching for a filter that reduces TDS, we recommend our Express Water Reverse Osmosis systems. Unlike reverse osmosis systems, whole house systems will NOT reduce Total Dissolved Solids TDS. 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.

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. 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. 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.
BrandExpress Water #ad
Height20 Inches
Length4.5 Inches
Weight17.5 Pounds
Width4.5 Inches
Part NumberFLTWH2045CKS1
ModelFLTWH2045CKS1

8. Hydronix

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20 micron, Hydronix SPC-45-2020 Pleated Water Filter Whole House Commercial Industrial Washable and Reusable 4.5" x 20"

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Hydronix #ad - Sediment pleated cartridge technology - 20 micron. 4. 5" x 20" fits most 4. 5" x 20" housings. Pure 100% polypropylene pleated sheet media. High dirt holding capacity. Great chemical and bacterial resistance.
BrandHydronix #ad
ManufacturerHydronix #ad
Height4.5 Inches
Length20 Inches
Weight0.99 Pounds
Width4.5 Inches
Part NumberFBA-SPC-45-2020
ModelSPC-45-2020

9. Aquaboon

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FPMB-BB5-20, SDC-45-2005, 155358-43, P5-20BB, Aquaboon 1 Micron 20" BB Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with AP810-2, 2 Pack, FP25B

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Aquaboon #ad - 5 zones of filtration to ensure quality and remove more contaminants, silt, agents, solvents, such as sand, large and fine particles from a drinking water, dirt, and rust particles. Dimensions 20 inches x 4. 5 inches - 2-pack of 1 micron BB Sediment Water Filter. Whole house sediment filtration.

Universal replacement - fits most 20 inch Water Filter housings. Contains no binders, antistatic materials or wetting agents. Replace for great taste of your water. Lifetime 4 - 6 months / 20000 - 30000 gallons depending on the water quality. Quality filtration made of thermally bonded 100% pure polypropylene microfibers. Compatible housings 3m 70020143163, glacier bay, cfs02t. Compatible replacement filters aqua sun international sws-bb, p5-20bb, hydronix sdc-45-2005, ispring fp25b, aquapure ap810-2, p5-20bb, pura 33003117, heritage parts tmp5618907, clearchoice 84644, liquatec sdf-45-2005, everpure ev910837, neo-pure mbgC-45200-05, Filter Specialist CMMF0520-45W1, Pentek 155358-43, freshwatersystems mbgc-45200-05, watts fpmb-bb5-20, pentair dev910837, axeon membranes 200640, Valuetrex VX05-20BB, sdg-45-2005, Sterilight CMB-520-HF, ev910837, etc.

Systems from 3m, ge, costway, olympia, aquasana, ap802-1.5, smart aqua life, the perfect water, geekpure, us aqua, pentek, culligan, Aqua-Pure, Whirlpool, AquaPure AP802, Global Water, DuPont, APEC, Cuno 5557610, etc.
BrandAquaboon #ad
Height20 Inches
Weight5 Pounds

10. Hydronix

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Single Unit, Hydronix SDC_45_2005_6_Pack SDC-45-2005 5 Micron Whole House 20 x 4.5 Sediment Water Filter 6 Pack, White

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Hydronix #ad - Graded density for higher dirt holding capacity. Materials ansi/nsf Standard 42 tested and certified. For optimum dirt-holding, replace about every 2-3 months. 5 micron fine sediment filter for cleaner water.
BrandHydronix #ad
ManufacturerHydronix #ad
Height20 Inches
Length4.5 Inches
Weight10.46 Pounds
Width4.5 Inches
Part NumberSDC-45-2005
ModelHYDRONIX_SDC_45_2005_6_PACK