iSpring WGB21BM 2-Stage Whole House Water Filtration System, 10”x4.5” 1" Ports & FC15B High Capacity Activated CTO Carbon Block Filter Replacement Cartridge, 5-Micron 10"x4.5"

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Management number 221588644 Release Date 2026/05/03 List Price US$91.07 Model Number 221588644
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iSpring WGB21BM 2-Stage Whole House Water Filtration System, 10” x 4.5” Carbon Block and Iron & Manganese Reducing Filters, 1" PortsThe WGB21BM whole house filtration system is a great "point of entry" filtration system for cleaning up well water. Unlike "point of use" systems (like reverse osmosis systems such as our RCC7 series) that are installed to supply water to a specific faucet, the WGB21B-PB filters your water from the source. This means water from every output in your home will have passed through the two filtration stages of the WGB21BM. The first stage of the WGB21BM houses a 5-micron CTO coconut shell carbon block filter FC15B. Block carbon is more effective than other forms of carbon in that it is finely ground up carbon packed into a solidified block. This means they have a higher density than other types of carbon filters, and are therefore more effective in removing their targeted contaminants. The carbon block filter knocks out bad tastes and odors, removes up to 99% of chlorine from the water, and is highly effective on organic chemicals like herbicides and industrial chemicals. The second stage of the WGB21BM houses an iron and manganese reducing filter. The FM15B iron and manganese reducing filter is only included with the WGB21BM, as it is not needed for most municipal water supplies that the WGB21B targets. If you are on municipal (city) water or a generally clean water supply, you may want to consider the WGB21B over the WGB21BM. For removing contaminants and heavy metals like iron and manganese found in the majority of well water supplies however, the WGB21BM fits the bill. Note If lead is the major concern, you may instead want to look at using a filter specifically for lead such as the FCRC15B, which is included in our whole house systems WGB21B-PB.iSpring FC15B High Capacity Activated CTO Carbon Block Filter Replacement Cartridge for Under Sink and Whole House Water Filtration System, 5-Micron 10"x4.5"Used as the second stage for iSpring Direct Connect under sink water filter system US21B and iSpring whole house filtration system WGB21B or the first stage of iSpring whole house filtration systems WGB21BM and WGB21B-PB. The carbon block filter consists of high-quality activated carbon. It is effective in reducing free chlorine, bad taste, odor, THM, organics, hazardous chemicals, and more. Depending on source water quality or flow rate, it needs to be replaced every 6 months or about 50, 000 gallons of water. Each filter is individually sealed to keep freshness. Fits models using standard 10" x 4.5" water filters.

  • Product 1: [Two-Stage Effective Filtration] Our featured 2nd stage filter (FM15B) 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). Using high quality coconut shell carbon and highly compact fabrication tech, 1st-stage CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes over 90% of chlorine, and is highly effective on VOCs like herbicides and industrial solvents. iSpring WGB21BM is THE system you need to protect your family and household appliance from iron, manganese, and more.
  • Product 1: [Easy Installation and Filter Change] The system comes pre-assembled onto the mounting bracket for a streamlined, DIY installation. Filter wrench included to make routine filter changes easy and quick. Refer to our manual and our helpful YouTube videos to install this point-of-entry (POE) filtration system at the main water supply to get clean and healthy water for the entire family. With 1” NPT inlet/outlet and 10” x 4.5” filter cartridges, the system has a minimum impact on water flow (up to 15 GPM) and requires minimum maintenance.
  • Product 1: [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. It is tested by an independent third-party to meet NSF/ANSI standards. The iron and manganese reducing filter lasts up to 3 times longer than greensand due to the catalytic media not being consumed in the process. Those filters have a filtration capacity of up to 50,000 gallons of water, enough to supply a family of four with clean water for up to a year.
  • Product 1: [Peace-of Mind Customer Service] Backed by a 30-day money-back guarantee, 1-year warranty, and extended manufacturer warranty upon warranty registration at iSpring. Lifetime CS and tech support from Atlanta, GA USA. We stand behind our products. If you encounter any problems with any of our products, please reach out to us immediately. We are happy to help!
  • Product 2: [Premium Quality Material] Using high-quality coconut shell carbon and highly compact fabrication tech, this highly activated carbon block CTO(Chlorine, Taste, 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. Free of surfactants, binders, and adhesives. No leaching carbon ash.
  • Product 2: [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.
  • Product 2: [Long Filter Life] 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 optimal performance. Usually used as the second stage filter for whole house water filtration systems, FC15B brings clean and refreshing water to every faucet in your home.
  • Product 2: [Great Compatibility] Official replacement filter for iSpring Under Sink Water Filter System US21B and Whole House water filtration systems(WGB21B, WGB21BM, and WGB21B-PB). Fits other standard 10" x 4.5" undersink and whole house water filtration systems. Individually sealed for freshness.
Capacity 50000 Gallons
Brand Name iSpring
Model Name WGB21BM
Unit Count 1.0 Count
Manufacturer iSpring
Model Number WGB21BM
Power Source Manual
Material Type Carbon,Coconut Shell,Iron
Container Type Cartridge
Installation Type Under Sink
Maximum Flow Rate 15 Gallons Per Minute
Included Components Cartridge
Purification Method Activated Carbon, Carbon Block
Other Special Features of the Product Chlorine Reduction, NSF certified

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