Top 9 CTO Carbon Filter 20 – Replacement Under-Sink Water Filters

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1. iSpring

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Grey, iSpring FC25B High Capacity 20” x 4.5” Water Filter Replacement Cartridge Whole House Big Blue CTO Carbon Block, 4.5" x 20"

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iSpring #ad - 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. The 20” x 4. S. Unlike an ro membrane, the filters don’t reduce Total Dissolved Solids TDS, and instead keeps healthy minerals in your water.

They are tested by an independent third-party to meet NSF/ANSI standards. Activated carbon is an effective adsorbent because it is a highly porous material and provides a large surface area to which contaminants may adsorb. 5” filter cartridges have a minimum impact on water flow up to 15 GPM and require minimum maintenance. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis RO systems. Standard size: our filter set fits standard 20” x 4. Local support team.

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. Please unwrap the cartridges before use. 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.
BrandiSpring #ad
ManufactureriSpring #ad
Height20 Inches
Length4.5 Inches
Weight5.2 Pounds
Width4.5 Inches
Part NumberFC25B
ModelFC25B

2. Aquaboon

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Aquaboon 5 Micron Big Blue 20" x 4.5" CTO Carbon Block & Sediment Replacement Filter Cartridges Set | 1 set, EP20-BB, 2 packs FC25BX4, 33003117-1, DGD-5005-20, 32-450-20-GREEN, 2C-20BB, 155358-43

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Aquaboon #ad - 104114-4, clearchoice ccs031, pentek 255678-43, purenex 2c-20bb, harmsco hac-bb-20-w, 6c-20bb, ispring fc25bx4, ep20-bb, kx-matrikx-cto2-hd20, comin16ju023031, ra-2cto-20bb, kx matrikx 32-450-20-green, blcto20x4, FHR-20-45-CARBON-KIT, water filters depot wfd wf-cb205-bb, Ronaqua 2C-20BB, tier1 ep5-20bb, etc. Carbon activated carbon water filter comes in sealed packaging, so you can be sure that it will not go to waste, in particular chlorine.

Compatible sediment cartridges 3m aqua-pure 5618903, pura 33003117-1, ronaqua 10s-20bb5, valuetrex vx05-20bb, cwd-pentek-dgd-5005-20, spiropure sp-dd-5005-20bb, wholesalemarketllc pp-20b10, pentek 155358-43, tier1 p5-20bb, clearchoice ccs034, ap810-2, fp25bx2, 2c-20bb5, watts fpmb-bb5-20, purenex 4s-20b-5m, dgd-5005-20, filter specialist cmmf0520-45w1, ispring fp25b, neo-pure mbgc-45200-05, bbsed-20b4, h2o lf-pp-005-508, Viqua CMB-520-HF, bluonics pp-20b4, liquatec sdf-45-2005, etc. The inner core of a sediment filter cartridge is denser than the outer core, dirt, such as sand, thereby making it serve longer.

It will also help you get rid of chemicals such as pesticides and herbicides. This durable coconut shell activated carbon water filters is mainly designed to remove volatile organic compounds, you can forget about unpleasant taste and smell. Make your home uncontaminated by removing chlorine and other harmful industrial chemicals - drink the water knowing that it is 100% safe. Carbon filters work on the basis of the absorption process and sediment filters provides mechanical filtration. It has the advantage of having layers with graded density, sludge, it's a sieve with porosity that allows only water to pass through.
BrandAquaboon #ad
ManufacturerAquaBoon #ad
Height5 Inches
Length20.2 Inches
Weight9 Pounds
Width9.2 Inches
Part NumberB01MA240U1

3. Aquaboon

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Aquaboon 5 Micron Big Blue 20" x 4.5" CTO Carbon Block & Sediment Replacement Filter Cartridges Set | 2 set, 32-450-20-GREEN, 4 packs FC25BX4, DGD-5005-20, 33003117-1, 155358-43, EP20-BB, 2C-20BB

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Aquaboon #ad - It will also help you get rid of chemicals such as pesticides and herbicides. Healthy set our set of sediment and carbon filter cartridges will help you to keep your water purified and fresh. Compatible carbon cartridges bluonics blcto20x2, tier1 ep5-20bb, fhr-20-45-carbon-kit, express water fltwh2045c, water filters depot wfd wf-cb205-bb, max water usa inc.

Quality mechanical filtration ensure to remove more contaminants, it's a sieve with porosity that allows only water to pass through. It has the advantage of having layers with graded density, dirt, thereby making it serve longer. Make your home uncontaminated by removing chlorine and other harmful industrial chemicals - drink the water knowing that it is 100% safe. 104114-4, pentek 255678-43, fltwh2045c02, blcto20x4, harmsco hac-bb-20-w, ispring fc25bx4, 6c-20bb, ra-2cto-20bb, ronaqua 2c-20bb, purenex 2c-20bb, wholesale market llc bbcto-20b4, clearchoice ccs031, CTO20B4, COMIN16JU023031, EP20-BB, Geekpure BC20-BB-5, kx matrikx 32-450-20-green, kx-matrikx-cto2-hd20, etc.

The inner core of a sediment filter cartridge is denser than the outer core, sludge, such as sand, which allows the product to trap finer and finer particles, large and small particles from drinking water, and rust particles. Carbon filters work on the basis of the absorption process and sediment filters provides mechanical filtration. Sediment 100% pure polypropylene. This durable coconut shell activated carbon water filters is mainly designed to remove volatile organic compounds, in particular chlorine. By installing a carbon filter, so you can be sure that it will not go to waste, you can forget about unpleasant taste and smell.
BrandAquaboon #ad
ManufacturerAquaBoon #ad
Height20 Inches
Weight17 Pounds
Part Number43222-6660

4. Aquaboon

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Aquaboon Big Blue Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 20 inch Cartridge | Compatible with EPM-20BB, FC25B 2-Pack, 155783-43, CB-BB-20

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Aquaboon #ad - Compatible replacement filters clearchoice 84642, watts wcbcff20, epm-20bb, pelican cb-bb-20, cbc-20bb, ispring fc25b, Pentek 155783-43, CB-45-2010, hydronix CB-45-2005, 84641, trojan cb-bb-20, etc. Enjoy long-lasting coconut shell activated carbon water filters.

Your easy and smart coconut shell carbon filter. Long lasting your carbon block activated water filter comes in an airtight packaging, works better and lasts longer. Aquaboon – your smartest coconut shell water filter solution! Lifetime - 6 month Replace once or twice times a year, so you can trust it won’t go to waste, depending on the water quality. Universal 20-inch replacement elegantly designed at 4. 5” x 20”, hydronix, omni, pentek, kenmore, omnifilter, it will fit all standard 20 inch Big Blue Whole House filtration systems of 3M, filtrete, Whirlpool, Pelican, Dupont, GE, culligan, ispring, ClearChoice, watts, Trojan, etc.

Have a piece of mind knowing your water is purified with the superior Aquaboon filtration system. Ultra-high grade filtration our pure water coconut carbon filter is extensively tested and verified to meet health and product standards. 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.
BrandAquaboon #ad
ManufacturerAquaboon #ad

5. BLUONICS

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String-wound Sediment, CTO Carbon & Sediment Filter Set for our Well Water System > 3pcs 4.5" x 20" Whole House Cartridges

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BLUONICS #ad - 1st stage: 20 micron String Wound Sediment Filter. 3rd stage: 1 Micron Sediment Filter. Replacement filters for Amazon item B07GV5HVQ4. All our filters individually wrapped for freshness and protection while in shipment. 2nd stage: 5 micron Carbon Block Filter.
BrandBLUONICS #ad
ManufacturerWholesale Market LLC #ad
Part NumberR110WELLBB

6. Ronaqua

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FC25B, 2 pcs Big Blue CTO Carbon Block Water Filters 4.5" x 20" Whole House Cartridges Set WELL-MATCHED with CB-45-2005, FLTWH2045C02 and PRL-RCL

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Ronaqua #ad - Well-fit following housings: pentek bbfs-222, hydronix hx-hf45-20blbk10, simpure rswhb002z_s8, geekpure bb-20b, aquaboon ab-wh20bb, hfpp-1-pr20, 150235 and 150233, Water Filters Depot WFD H-20BB-1PR, H2O Splash WHBB20T1BL, ispring hb28bx2 and wgb12b, H-H201BBE, premier water systems wf45-20-1npt, Max Water B078FPN68M.

Universal replacement for all 20" big blue water filter housing and well-matched models of cartridges: pelican water prl-rcl, pentek 155783-43, pentek EP20-BB, watts wcbcff20, ispring fc25b, Pelican CB-BB-20, CB-45-2010, EPM-20BB, BC20-BB-5, cbc-20bb, hydronix CB-45-2005, CB-BB-20, FLTWH2045C02.

This filter is wrapped and sealed and meets nsf national Science Foundation Standards and Regulations. Keeps water fresh by reducing and removing iron, herbicides, pesticides, hydrogen sulfide, chlorine, manganese, and other industrial chemicals. Dimensions: 20 inches x 4. 5 inches 508 cm x 11. 43 cm. Product lifetime - 20, 000 gallons - replace two or three times a year - depending on your water quality.
BrandRonaqua #ad
ManufacturerRonaqua #ad
Height20 Inches
Length10 Inches
Weight14 Pounds
Width4.5 Inches
Part Number2C-20BB
Model2C-20BB

7. SimPure

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4 Pack, 5 Micron 10" x 2.5" Carbon Block Filter Cartridge Replacement, Whole House CTO Carbon Sediment Water Purifier Filter Compatible with Most RO System, SimPure Carbon Water Filter

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SimPure #ad - High quality materials: simpure activated carbon filter is made of high quality coconut shell carbon. Easy installation: universal 10 inch cartridge, whole house 10” standard filter housing and any 10” water filtration unit. Drop-in designed for easy and quick filter change, fits most standard under-sink RO system, no tools required.

100% safe: our replacement water filter cartridge is verified by independent laboratory tests, compliance with NSF 42 certification standards to ensure your safe. Excellent customer service: we provide one year warranty and 30 days money back, if you have any questions, lifetime friendly customer service, do not hesitate to contact us, we will always to stand help you.

Outer layer has food grade plastic net wrapping PP non-woven fabric, which can last up to six months. Durable and sealed end caps with sealed silicon O-ring prevent leak. Food grade efficiency filtration: designed with 10” x 2. 5” slim carbon block filter, filters up to 15, filtration rating is 5 micron, organic chemicals and odor, chlorine, effectively removes 97% sediment, 000 gallons, etc. Provide quite clean and fresh water for your family.
BrandSimPure #ad
ManufacturerSimPure #ad
Part NumberRSCTO001Z_4S8
Model1025

8. iSpring

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ISpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges, Pack of 4, CTO Carbon Block, Fits WCB32C, WCB32O & RCB3P

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iSpring #ad - Top-notch quality: our fc25 cto carbon block filters are made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. We are happy to help! Please note: the cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use.

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. 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. Peace of mind customer service: register online to activate your extended manufacturer warranty and life-time free tech support from U.

S. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis RO systems. Standard size: our filter set fits standard 20” x 2. 5” housings, including brand name models. The 20” x 2. 5” filter cartridges have a minimum impact on water flow up to 12 GPM and require minimum maintenance. Unlike an ro membrane, the filters don’t reduce Total Dissolved Solids TDS, and instead keeps healthy minerals in your water.
BrandiSpring #ad
ManufactureriSpring Water Systems #ad
Height10 Inches
Length2.5 Inches
Weight0.5 Pounds
Width2.5 Inches
Part NumberFC25x4
ModelFC25X4

9. KX Matrikx

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KX MATRIKX 32-250-20-GREEN Carbon Block Water Filter

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KX Matrikx #ad - Competitively priced vs. Gac filters. Optimized to perform as both a sediment and activated carbon filter. Radial flow outside-to-inside filtration provides increased dirt-holding capacity. Drop-in cartridge provides quick and easy filter change.
BrandKX Matrikx #ad
ManufacturerPurenex #ad
Height2.5 Inches
Length20 Inches
Weight1.85 Pounds
Width2.5 Inches
Part NumberKX-MATRIKX-CTO2-20
Model32-250-125-20-1