Top 10 Wgb21b Filters – Replacement Under-Sink Water Filters

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1. iSpring

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ISpring FP15B Big Blue Whole House Water High Capacity Premium PP Sediment Filter Replacement Cartridge, 4.5" x 10", White

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iSpring #ad - Fits standard 10" big blue whole house water filtration systems. Premium quality material complies strictly with fda standard cfr-part 177 and tested by independent third party against NSF/ANSI standardNSF/ANSI 42 for material safety and water quality. Great compatibility official 1-stage sediment filter for iSpring whole house water filtration system WGB21B.

Replace the filter every 3-6 months to achieve optimal performance. Multi-layer density tech a combination of a sparse layer, compaction layer, dust, sand, and precision layer ensures this iSpring premium 5-micron polypropylene sediment filter captures dirt, silt, rust, and scale particles effectively. Individually sealed for freshness. Exceptional filter life filters up to 15, 000 gallons depending on the use and feed water quality. Peace-of-mind customer support your risk-free shopping experience is backed by a 30-day money-back guarantee and lifetime tech support from iSpring in Atlanta, GA at 678 261-7611.

The polypropylene construction provides superior chemical resistance and is not prone to bacterial attack. Combining with other filters such as cto filterfc15b, ispring fine PP sediment filter not only brings clean and refreshing water to every faucet in your home but also helps to prolong the lives of your appliances and protects plumbing from sediment and scale buildup.
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ManufactureriSpring Water Systems #ad
Height10 Inches
Length4.5 Inches
Width4.5 Inches
Part NumberFP15B
ModelFP15B
Warrantyreplacement sediment filter

2. iSpring

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4.5"x4.5"x10", Big Blue 5-Micron 10"x4.5", iSpring FC15B High Capacity Activated CTO Carbon Block Filter Replacement Cartridge for Under Sink and Whole House Water Filtration System

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iSpring #ad - No leaching carbon ash. Fits other standard 10" x 4. 5"big blue undersink and whole house water filtration systems. Free of surfactants, Taste, and adhesives. Usually used as the second stage filter for whole house water filtration systems, 000 gallons depending on the use and feed water quality.

Individually sealed for freshness. Replace the filter every 6 months or every 50, FC15B brings clean and refreshing water to every faucet in your home. Long filter life filters up to 50, 000 gallons of water for optimal performance. Great compatibility official replacement filter for ispring under sink water filter system US21B and Whole House water filtration systemsWGB21B, WGB21BM, and WGB21B-PB. Peace-of-mind customer support your risk-free shopping experience is backed by a 30-day money-back guarantee and lifetime tech support from iSpring in Atlanta, GA. Exceptional filtration performance 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.

Steady flow and high absorption. Premium quality material using high-quality coconut shell carbon and highly compact fabrication tech, binders, this highly activated carbon block CTOChlorine, and Odor filter cartridge is designed and produced to achieve maximum filtration efficiency and filter life for 10" Under Sink Water Filter and Whole House Water Filtration Systems.
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ManufactureriSpring Water Systems #ad
Height10 Inches
Length4.5 Inches
Weight0.9 Pounds
Width4.5 Inches
Part NumberFC15B
ModelFC15B
Warranty30-Day Money Back Guarantee and Extended Warranty upon Registration. Lifetime CS and tech support from Atlanta, GA.

3. iSpring

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Fits Whole House Water Filtration System WGB21B-PB, 4.5"x4.5"x10", iSpring FCRC15B Lead Reducing Replacement Filter, White, Ultra High Capacity, 10"x4.5"

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iSpring #ad - It also has a minimum impact on water flow up to 15 GPM and requires minimum maintenance. Tds note unlike an ro system, and instead keeps healthy minerals in your water. Great compatibility being a perfect 2nd stage filter for iSpring WGB21B-PB, FCRC15B also fits standard 10” x 4.

It features a high capacity of 80, 000 gallons of water, effectively reducing lead level from 100 ppb to 15 ppb the EPA standard for drinking water and less. Top-notch customer service backed by a 30-day money-back and extended manufacturer upon registration at iSpring. Easy to maintain the cartridge lasts up to 3 times longer than conventional media.

5” housings from most brand name models. Lifetime tech support from Atlanta, GA. If you are interested in a filter that removes TDS, this system will NOT reduce Total Dissolved Solids TDS, please consider our iSpring RO systems. Protect your family and household appliance from lead our filter fcrc15b is specially designed for reducing lead.
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ManufactureriSpring #ad
Height10 Inches
Length4.5 Inches
Width4.5 Inches
Part NumberFCRC15B
ModelFCRC15B
WarrantyWarranty and Support: By default every iSpring whole house water filtration system comes with thirty-day money back policy and one-year limited manufacturer warranty. We care and love to help customers. Besides DIY videos on YouTube and Knowledge Base on our website, we provide lifetime customer service from Atlanta, GA. Please don't hesitate to reach out to us before and after your purchase. Your satisfaction is our business!

4. iSpring

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Brass top with clear housing, iSpring WSP100ARB Reusable Whole Spin-down Sediment Water Filter 100 Micron with Scraper and Touch-Screen Auto Flushing Module

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iSpring #ad - Lifetime tech support from iSpring. Provide a maximum flow rate of 35 gpm. System can be installed in any direction thanks to the 360° rotatable head connection. Integrated auto flushing moduledual power supply with scraper saves time and effort on routine maintenance.

As a larger, rust, upgraded version of WSP series, sediment, WSP100ARB filters out particulate, and floating objects. Works well with copper, PEX, and CPVC pipes. Parts included: two ¾” push-fit plumbing fittings, 1 circlip, 1 power adapter, 3 AA batteries for touch-screen Auto Flushing Module. Choose from auto, semi-auto, and manual on HD touch screen to enable the system to flush automatically on a preset schedule. Easy installation. Flushable and reusable.

Two types of threads on both two ends of connectors: 1-inch mnpt and 3/4-inch FNPT or 3⁄4-inch push-fit plumbing fittings. Used to create a multi-layer gradient filtration system taking considerable workload off finer filters that follow it and result in a longer filter life. No welding or glue needed. Pressure-resistant and durable materials: lead-free brass machine head, 100-micron food grade stainless steel mesh filter screen, and explosion-proof transparent housing.
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ManufactureriSpring Water Systems #ad
Height6 Inches
Length20 Inches
Width10 Inches
Part NumberWSP100ARB
ModelWSP100ARB

5. iSpring

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ISpring WGB22B 2-Stage Whole House Water Filtration System Big Blue with 20” x 4.5” Fine Sediment and Carbon Block Filters, Removes 99% of Chlorine

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iSpring #ad - Top-notch quality: the first stage high capacity polypropylene sediment filter is able to achieve filtration down to 5 microns. Protect your family and household appliance from sediment, industrial solvents, herbicides, and More: Say goodbye to smelly, rust, Chlorine, bad tasting water! our system removes up to 99% of chlorine from water as well as up to 95% of sediment, pesticides, VOCs, and various other contaminants.

If you are interested in a filter that removes TDS consider our iSpring Reverse Osmosis RO systems. With 1” npt inlet / outlet and Big Blue 20” x 4. 5” filter cartridges, the system has minimum impact on water flow up to 15 GPM and requires minimum maintenance. Peace of mind customer service: 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! Register online to active extended manufacturer warranty with lifetime personalized support.

The second stage cto carbon Block filter is made of high quality coconut shell carbon for maximum filtration efficiency and 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. Diy installation and maintenance: refer to our manual and our helpful youtube videos for easy DIY installation.
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ManufactureriSpring Water Systems #ad
Height27.75 Inches
Length16.25 Inches
Weight33 Pounds
Width7.75 Inches
Part NumberWGB22B
ModelWGB22B

6. iSpring

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5-Micron Universal Coconut Shell High Capacity CTO Filter for Under Sink and Whole House Water Filtration Systems, iSpring FC15BX4 4.5" x 10" Carbon Block Water Filter Replacement Cartridge, Pack of 4

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iSpring #ad - 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. Long filter life each cartridge filters up to 50, 000 gallons of water for optimal performance, 000 gallons depending on the use and feed water quality.

Free of surfactants, Taste, this highly activated carbon block CTOChlorine, and adhesives. All 4 cartridges are individually sealed for freshness. Exceptional filtration performance 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. Peace-of-mind customer support your risk-free shopping experience is backed by a 30-day money-back guarantee, and lifetime tech support from iSpring in Atlanta, extended warranty upon registration, GA.

Premium quality material using high-quality coconut shell carbon and highly compact fabrication tech, binders, and Odor filter cartridge is designed and produced to achieve maximum filtration efficiency and filter life for 10" Whole House Water Filtration Systems. No leaching carbon ash. Steady flow and high absorption. Great compatibility fits standard 10"x4. 5" filters. Replace the filter every 6 months or every 50, depending on the quality of source water and daily water consumption.
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ManufactureriSpring #ad
Height10 Inches
Length5 Inches
Width5 Inches
Part NumberFC15BX4
ModelFC15BX4
WarrantyExtended Warranty upon Registration and Lifetime CS and Tech Support from Atlanta, GA.

7. iSpring

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White, iSpring F2WGB22BPB 4.5” x 20” 2-Stage Whole House Water Filter Replacement Pack Set with Carbon Block and Lead Reducing Cartridges, Fits WGB22B-PB

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iSpring #ad - Unlike an ro membrane, and instead keeps healthy minerals in your water. For well/pond water with very high iron/manganese please contact us for customized solutions. Peace of mind customer service register online to activate your manufacturer and life-time free tech support.

Our filter set fits standard 20” x 4. Our 20” x 4. It is tested by an independent third-party to meet NSF/ANSI standards. If you are interested in a filter that removes TDS, the filters don’t reduce Total Dissolved Solids TDS, consider our iSpring Reverse Osmosis RO systems. 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. 5” filter cartridges have a minimum impact on water flow up to 15 GPM and require minimum maintenance. This filter features a high capacity of 15, effectively reducing lead to below 15 ppb the EPA standard for drinking water.

Please unwrap the cartridges before use. Top-notch quality the first stage cto carbon block filter is made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. Protect your family and household appliance from lead and more our filter fcrc25b is specially designed for reducing lead.
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ManufactureriSpring Water Systems #ad
Height4.5 Inches
Length20 Inches
Width9 Inches
ModelF2WGB22BPB

8. iSpring

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Brass, iSpring WSP-50 Reusable Whole House Spin Down Sediment Water Filter 50 Micron, 1" MNPT + 3/4" FNPT

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iSpring #ad - Contact us for screen replacement in different size. Note: screens with 50 or 100 microns may be clogged very soon for water with high sediment content. Flushable and reusable takes the considerable workload off finer filters that follow behind it; unlike traditional sediment filters, regular flushing keeps the WSP performance in control.

See-through housing provides easy visual monitoring. Rated at 50 micron. Solid lead-free brass machine head with stainless steel mesh filter screen that usually lasts 1 - 2 years. Ideal frontier water filter protecting your entire plumbing system from sediment, rust, dirt, sand, and large particles. Easy installation with double threads: 1-inch mNPT and 3/4 inch FNPT on both ends, garden hose barb fitting on flush out valve. 40 - 100f, 20 - 100 psi, for indoor use only.
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ManufactureriSpring Water Systems #ad
Height9 Inches
Length3.5 Inches
Weight1 Pounds
Width3.5 Inches
Part NumberWSP50
ModelWSP50

9. GE

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GE FXWTC Whole Home System Replacement Filter Set, Pack of 2

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GE #ad - Three-month filter life: for best filtration results, filters should be replaced every three months or 30, 000 gallons. Includes two filters: compatible with gxwH04F and GXWH20S systems and most systems with 10" x 2. 5" filters. Whole home filtration system: Filtered water for your whole home. Premium filtration: certified to reduce sand, soil, rust and chlorine taste and odor in your water, appliances and plumbing fixtures.
BrandGE #ad
ManufacturerGE #ad
Height9 Inches
Length2 Inches
Weight0.6 Pounds
Width5 Inches
Part NumberFXWTC
ModelFXWTC

10. iSpring

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1000 Micron, Gold, iSpring WSP-1000SL Reusable Spin Down Sediment Filter

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iSpring #ad - Double threads on both ends: 1-inch mnpt and 3/4 inch FNPT, flush out valve has garden hose barb fitting. Flushable and reusable takes the considerable workload off finer filters that follow behind it; helps create a multi-layer gradient filtration system for better filtration results and extend filter life.

See-through housing provides easy visual monitoring. Ideal first stage water filter for residential homes to reduce sediment, dirt, sand, rust, and large particles before water entering to a finer whole house water filtration system.440 - 100f, 20 - 100 psi, for indoor use only. Rated at 1000 micron. Includes siliphos to help prevent scale and stop corrosion, greatly extending the life of your plumbing fixtures. It is recommended that the filter to be replaced every 3-6 months to prevent scale from building up.
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ManufactureriSpring Water Systems #ad
Height4.5 Inches
Length11 Inches
Weight1 Pounds
Width6 Inches
Part NumberWSP1000SL
ModelWSP1000SL