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Internet # 319269593

Model # WCFM400K

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Whole House Water Filter System, Iron and Manganese Removal, w/Automatic Regeneration and Air Injection, Set & Forget

$991.99
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  • Reduces up to 99% of iron and manganese
  • Uses only water and air for media regeneration
  • High Flow Rate: Up to 26 GPM
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Product Details

About This Product

Enjoy clean water from every faucet at home. ISPRING WCFM400K removes iron and manganese from your water efficiently and effectively. The system uses air injection with advanced catalytic media to remove iron and manganese from the water. During the backwash process, the system introduces fresh air into the top of the tank. As the water passes through the pocket, it is infused with the oxygen in the fresh air, and the advanced catalytic media is a catalyst between the iron, manganese and the air. The oxidation process is almost instantaneous; the iron and manganese precipitate and are trapped by the media bed. The system's electronic control valve automatically backwashes the system to clean the filter media and flush the precipitated iron and manganese down to the drain. The filter media inside of the WCFM400K acts as an insoluble catalyst to enhance the reaction between dissolved oxygen (D.O.) and iron compounds. The dissolved iron is usually in the ferrous bicarbonate state in ground waters due to exceeding free carbon dioxide and is not filterable. The filter media, acting as a catalyst between the oxygen and the soluble iron compounds, enhances the oxidation reaction of Fe2+ to Fe3+ and produces ferric hydroxide, which precipitates and may be easily filtered. The media is not consumed in the iron removal operation and therefore offers a tremendous economic advantage over many other iron removal methods.

Highlights

  • Enjoy clean water from every faucet: WCFM400K is an efficient and economical whole house central filtration system to reduce dissolved iron and manganese compounds from raw water supplies
  • Reduces iron, manganese, solids and turbidity with sediment filtration
  • With an automatic media regeneration feature and digital control valve, the system is maintenance-free after setup
  • Use no chemicals: with new technology, WCFM400K whole house water filtration system uses only air for media regeneration
  • Filter media is certified to NSF/ANSI Standard 61
  • Unlike similar systems from other manufactures, ISPRING WCFM400K uses no oxidizers or chemical feed other than the same air we breathe
  • "Set and forget'': simple to install and easy to set up; customizable auto-flush intervals depending on your incoming water quality and usage, saving you time and money in the long run
  • Note that this system DOES NOT remove hydrogen sulfide(H2S) and would cause system damage if the water contains hydrogen sulfide(H2S) - please consider our WCFM500K for removing hydrogen sulfide(H2S) in water
  • Peace of mind customer service: besides a 30-day money-back guarantee, ISPRING stands behind its products by providing a 1-year manufacturer warranty and lifetime free technical support, extended warranty plans are also available upon registration online, local customers are welcome to visit us and pick up products at our warehouse in cumming, ga
  • Please note: unlike an RO system, this system will not reduce Total Dissolved Solids (TDS), if you are interested in removing TDS, please consider our ISPRING Reverse Osmosis (RO) systems for additional protection
  • How Can We Help? Text us now! (678)261-7611 Call Only M-F 9-5 EST / (470)560-0012 Text Only M-F 9-5 EST
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Product Information

Internet # 319269593

Model # WCFM400K

Specifications

Dimensions: H 63.5 in, W 10.5 in, D 10.5 in

Dimensions

Fitting size (in.)

0.75 in

Product Depth (in.)

10.5 in

Product Height (in.)

63.5 in

Product Width (in.)

10.5 in

Details

Application Type

Commercial, Residential, Well Water

Color

Chrome

Features

Bypass valve, Programmable

Filtration Method

Manganese Dioxide

House Hold Size

8+ people

Includes

No Additional Items Included

Indoor/Outdoor

Indoor

Maximum feed water pressure (psi)

100

Maximum feed water temperature (F)

100

Maximum filtered water flow (gallons per min.)

26

Minimum feed water pressure (psi)

35

Minimum feed water temperature (F)

39

Number of filters included

1

Number of Stages

1 Stage

Product Weight (lb.)

160 lb

Reduces

Iron, Other

Returnable

90-Day

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

1 year

Questions & Answers

Is the 3 year life based on time or gallons/utilization? Considering a system like this for a 2nd home that gets used about 6 months a year. Based on that occupancy, would the filter life double to 6 years?
BySep 10, 2026
1 Answer | 
Answer This Question

Hi IronMan, The system has a 10 life span, the 3 years is the extended warranty offered by iSpring Water Systems LLC, the manufacturer warranty. Thank you, iSpring Water Systems LLC

By|Sep 11, 2026


    What other parts do I need to purchase so the manganese removal filter works whole house?
    ByAug 31, 2026
    1 Answer | 
    Answer This Question

    Hi Terri, This is a whole house system for removal of Iron and Manganese. This system requires pre-filtration such as a sediment and carbon filter before the system, and the well water should be bacteria free as well. Please call the office @ 678-801-9308 if you have any questions. Thank you, iSpring Water Systems LLC

    By|Aug 31, 2026


      For AIO filters the water PH must generally be above 7 to work correctly. Additionally, AIO filters naturally raise water PH levels. None of these details are included in your marketing materials. Why has this information been omitted?
      ByJul 28, 2026
      2 Answers | 
      Answer This Question

      Hi Ashley, This information is available online in the PDF versions of the manual for the system. The PDF version of the user guides and Manuals are available online for download that includes the information on the increase of PH from the Air Injection systems. Thank you, iSpring Water Systems LLC

      By|Aug 22, 2026

        (1)

        Hi Ashley, This information is available online in the PDF versions of the manual for the system. The PDF version of the user guides and Manuals are available online for download that includes the information on the increase of PH from the Air Injection systems. Thank you, iSpring Water Systems LLC

        By|Aug 21, 2026


          The description says the filter life is 3 years but answers to questions indicate that the unit filter 10 years. What is the real answer? Is a filter change needed every 3 years and the unit totally replaced in 10 years?
          ByJul 24, 2026
          2 Answers | 
          Answer This Question

          Hi Sasa, This model is only good for 3 years. The WF1054 is 5 years, and WF150K is the 10 year model. Thank you, iSpring Water Systems LLC

          By|Aug 23, 2026

            (1)

            Hi Sasa, This model is only good for 3 years. The WF1054 is 5 years, and WF150K is the 10 year model. Thank you, iSpring Water Systems LLC

            By|Jul 24, 2026


              Has the PRO system been tested yet to reduce and eliminate PFAS?
              ByJul 19, 2026
              2 Answers | 
              Answer This Question

              Hi Pfas, The system has not received Certification from NSF yet, but has been 3rd Party Certified to remove PFAS. Thank you, iSpring Water Systems LLC

              By|Jul 20, 2026

                Hi Pfas, The system has not received Certification from NSF yet, but has been 3rd Party Certified to remove PFAS. Thank you, iSpring Water Systems LLC

                By|Aug 21, 2026


                  Can the system be plumbed outside
                  ByJun 29, 2026
                  2 Answers | 
                  Answer This Question

                  Hi Derek, Not normally sir, the system is recommended for inside installation since the system has electrical components. IF installed outdoors you would need to build or put some sort of housing over the system to protect it from the outdoor elements. Thank you, iSpring Water Systems LLC

                  By|Jun 29, 2026

                    Hi Derek, Not normally sir, the system is recommended for inside installation since the system has electrical components. IF installed outdoors you would need to build or put some sort of housing over the system to protect it from the outdoor elements. Thank you, iSpring Water Systems LLC

                    By|Aug 21, 2026


                      What system do I need. We have Iron & bacteria from our well water. We would like one system not a bunch of systems.
                      ByMay 30, 2026
                      2 Answers | 
                      Answer This Question

                      Hi AF3995, We would recommend testing the well water first, and then emailing or providing the test results to iSpring so that we can help you choose a system or systems that best suit your needs based on your water quality. If you have bacteria we would recommend a UV ultra-violet system. Thank you, iSpring Water Systems LLC

                      By|Jun 1, 2026

                        Hi AF3995, We would recommend testing the well water first, and then emailing or providing the test results to iSpring so that we can help you choose a system or systems that best suit your needs based on your water quality. If you have bacteria we would recommend a UV ultra-violet system. Thank you, iSpring Water Systems LLC

                        By|Jun 29, 2026


                          What size fittings are the inlet and outlet ports?
                          ByApr 13, 2026
                          1 Answer | 
                          Answer This Question

                          Hi Nathan, The system includes 2 sets of connectors for the inlet and outlet. One set is 3/4" inch and the other is 1" inch. Thank you, iSpring Water Systems LLC

                          By|Apr 13, 2026


                            Viewing 1-8 of 98

                            Customer Reviews

                            4.4 out of 5

                            • 4.4 out of 104 reviews
                            • 91% recommend this product
                            Filter by:
                            Showing 1-10 of 104 reviews
                            So far so good.
                            Got this installed and so far so good. Going to have a iron test done again to see what difference was made. The instructions for set up were slightly unclear as to which way the bypass valves should be on initial backflush, Robert at ispring helped me determine the correct orientation. Only issue was when i went to pick up at home depot the shipping boxes were destroyed, luckily everything seemed to be fine.
                            by
                              Nick at Customer Service was awesome
                              I bought this iSpring elite for sediment and chemicals for a whole home remodel along with the other elite iSpring for Iron and Maganese. Both were being installed on a well system. I had a licensed plumber install everything. All of the system worked well except for the iSpring elites. For some reason they wouldn't back flush. I called up iSpring support and spoke to Nicholas or "Nick" and this was probably the easiest customer service experience I've ever had. Asked a few questions to troubleshoot and had a couple replacement parts sent out by the next day. Had the plumber come back and add the new parts and boom, system works flawless now. They might have been damaged in transit because they came so far from where we live. But iSpring helped us get them back up and running in literally no time. Love the machine, love the results, and the customer service was top notch. As for the filters themselves, I went from having water that smelled like rotten eggs, and stained brown with iron, to the cleanest water on the street. Super happy with the results, I'll attach a picture of my set up with this post along with a description. My well water goes into a 500 micron autobackflishing iSpring sediment spin down, then to a 250 micron one, then into a 100 micron one, then into a 50 micron one, then the water travels through 2, GE whole home water filters with 30 micron filters, then in travels into both my iSpring elite systems, and then finishes off in the iSpring UV filter. iSpring makes some of the coolest products and even my plumber was in love with the set up.
                              by
                                Great product backed by awesome customer service
                                I worked with Nick to properly select the right filters for my well water. I really love the way they design the water inlet and outlet pipe. It’s way easier to connect it to my plumbing than the water softener. The filter became defective after 1.5 years. I contacted Nick and he promptly sent me a replace. It really took 5 minutes to swap out and its working great again.
                                by
                                  • Recommended
                                  Great customer service
                                  Sean with iSpring is great to work with. I had a problem with the unit and or my wells he told me how to fix the problem and he is sending me a new unit. I have very high iron in my water and the unit is supposed to remove it to proper levels. It was easy to install.I will do a follow up when the new unit comes in thanks Sean for all your help Kenny
                                  by
                                    Excellent water filtration system
                                    I recently had this whole house water filtration system installed by Azer-Plumb. Nemo did an amazing job with his installation and follow up. He was highly recommended by iSpring as one of there preferred installers. Thanks to Nick at iSpring and Pearl's recommendation on what system i should purchase, i am very pleased with everything from purchase to install and have recommended the team and product to several neighbors!
                                    by
                                      • Recommended
                                      Best customer service - Nick is teriffic!
                                      I had a question about parts availability when I moved the unit inside my home. Nick in Customer Service is a rockstar! He answered all my questions and found a way to "Yes". That is 100% customer focus, and I'm an iSpring customer for life.
                                      by
                                        • Recommended
                                        Fixed my water
                                        After spending a few thousand dollars with my local water filtration company 12 years ago, I decided to shop around for something that would handle the recent change in my water (addition of Hyrdrogen Sulfide) and not break the bank. I'm a frequent shopper at Home Depot and figured I would start there. I found the detail about the ISPRING products pretty helpful in narrowing down what I thought I needed. I also placed a call to ISPRING Sales & Tech for final selection. I ordered per ISPRINGS recommendation, received within 2 weeks, and installed my new IPSRING Sediment filter and Water Filter System myself. My water was immediately changed. No more smell, water softener was able to soften the water as it should, and all operated as it should. 5 months later my sediment filter with self flush started leaking a small amount to the drain. I reached out to ISPRING Warranty, described the issue, and the new component was put in the mail the same day. An email followed shortly from Julius and Sean in customer service providing tracking detail and requesting a follow up from me to verify component was received and issue resolved. I would recommend ISPRING for anyone looking for quality component backed by great service.
                                        by
                                          This customer chose to rate the product and not provide text.
                                          by
                                          • Verified Purchase
                                          STILL Doesn't clean water
                                          Bought 3 items by Ispring..for our well. water still smells...and leaves silt in tub. Bought Ispring because when i called before buying they answered with what appeared great support. NOW after buying NO answer. I have been calling for 2 weeks to learn WHY water is dirty. they just send me the manual...da.
                                          by
                                            5 found this review helpful
                                            Not working!
                                            Not working as described. Not filtering iron out. Don't waste your money. I have been in contact with them right after I received the filter and instead of taking it back and giving my money back ,they sent me free carbon filter to install. I don't need 10 filters,I need filter what filters out iron. I have sheep and they prefer to drink unfiltered water over i-spring "filtered" water. On the internet it says that "most of our products are made in Taiwan and China.
                                            by
                                            • Verified Purchase
                                            10 found this review helpful
                                            Showing 1-10 of 104 reviews

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                                            Product Snapshot

                                            Ideal for homeowners looking for whole-house iron and manganese removal, ensuring clean water from every faucet.
                                            Ideal for homeowners looking for whole-house filtration, making clean, safe water access effortless from every faucet.

                                            Flow Rate

                                            26 GPM
                                            15 GPM

                                            Filtration Stages

                                            1 Stage
                                            1 Stage

                                            Filter Lifespan

                                            Contaminant Removal

                                            Iron, Manganese, Solids, Turbidity
                                            Chloramine, Chlorine, Chlorine Taste, Iron, VOCs, Pesticides, Oxidized Minerals (Iron, Manganese, Sulfur)

                                            Capacity

                                            8+ people