--- product_id: 25182468 title: "iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5\" x 20\", Model: FM25B" brand: "ispring" price: "$247.99" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/25182468-ispring-whole-house-water-filter-cartridge-iron-and-manganese-reducing store_origin: US region: United States of America --- # 8 GPM high flow rate Reduces iron & manganese to 0.01 ppm 50,000 gallons filter life iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B **Brand:** ispring **Price:** $247.99 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your home’s water game with crystal-clear confidence! ## Quick Answers - **What is this?** iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B by ispring - **How much does it cost?** $247.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/25182468-ispring-whole-house-water-filter-cartridge-iron-and-manganese-reducing) ## Best For - ispring enthusiasts ## Why This Product - Trusted ispring brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Certified Safety & Support:** Meets FDA and NSF/ANSI standards with lifetime US-based tech support—because your family deserves nothing less. - • **Ultra-High Flow Performance:** Delivers a powerful 8 gallons per minute with minimal pressure drop, ensuring your whole house stays hydrated without compromise. - • **Triple-Durable Catalytic Media:** Lasts up to 3x longer than traditional green sand filters, saving you time and money on replacements. - • **Wide pH & Temperature Stability:** Operates flawlessly between pH 5.8-8.6 and 40-113°F, adapting to diverse water conditions with consistent performance. - • **Precision Iron & Manganese Removal:** Cuts iron from 3.0 ppm to near zero (0.01 ppm), guaranteeing crystal-clear, healthy water throughout your home. ## Overview The iSpring FM25B Whole House Water Filter Cartridge is a high-performance replacement filter designed to drastically reduce iron and manganese levels in your water supply. Compatible with iSpring WGB22BM and WGB32BM systems, it delivers an impressive flow rate of 8 gallons per minute with minimal pressure loss. Engineered with durable catalytic media, it lasts up to three times longer than conventional filters, treating up to 50,000 gallons or about 12 months of use. Certified to FDA and NSF/ANSI standards, this filter ensures safe, clean water for your entire home while backed by lifetime US-based technical support. ## Description iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B ## Features - Replacement filters for iSpring whole house water filter systems (fits systems WGB32BM and WGB22BM) - Powerful Iron & Manganese Reducing: iSpring FM25B whole house water filter cartridge 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). - Efficient performance: This iron filter whole house has higher linear velocities than conventional media and delivers high flow rates & very low pressure drop. Feed water pressure: 20 - 100 psi. Pressure impact: up to 5 psi drop at a flow rate of 8 gpm. The iSpring FM25B whole house filter effectively removes harmful substances, improves water quality, and protects family health. - Excellent Stability and Durability: Stable and satisfactory performance at a wide pH range 5.8 - 8.6 and temperature range 40 - 113F. FM25B whole house water filter lasts up to 3 times longer than green sand due to the catalytic media not being consumed in the process. Filter life: 50,000 gallons at 3.0 ppm iron level, or about 12 months @ 200GPD. - High Quality Requirements: Safe for Drinking Water Applications. The water filter is manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards for water quality, material safety and structural integrity. 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 water filters please reach out to us immediately. We are happy to help! ## Technical Specifications | Specification | Value | |---------------|-------| | Material | Iron | | Product Dimensions | 6"D x 22"W x 6"H | | Item Weight | 8 Pounds | | External Testing Certification | ANSI | | Product Benefits | Removes Iron and Manganese | | Brand | iSpring | | Manufacture Year | 2024 | | UPC | 662425080076 | | Global Trade Identification Number | 00662425080076 | | Unit Count | 1.0 Count | | Compatible Water Purifier Models | iSpring WGB22BM, iSpring WGB32BM | | Number of Items | 1 | | Manufacturer | iSpring | | Part Number | FM25B | | Item Weight | 8 pounds | | Item model number | 1 | | Is Discontinued By Manufacturer | No | | Size | 1 Count (Pack of 1) | | Color | White | | Style | Iron Filter | | Pattern | Water Filter | | Power Source | ac | | Installation Method | Whole House Water Tank | | Item Package Quantity | 1 | | Number Of Pieces | 1 | | Flow Rate | 8 Gallons Per Minute | | Number of Handles | 1 | | Special Features | Multi Stage Filtration, Iron & Manganese Reducing | | Included Components | 1 FM25B filter | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Material:** Iron - **Product Dimensions:** 6"D x 22"W x 6"H - **Item Weight:** 8 Pounds - **External Testing Certification:** ANSI - **Product Benefits:** Removes Iron and Manganese ## Images ![iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B - Image 1](https://m.media-amazon.com/images/I/51-hRqU8k+L.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Questions & Answers **Q: We are looking to install this in a seasonal cabin, can this be winterized?** A: Hi Cate, This unit should be protected from direct sunlight or freezing temperature. Depending on the environment in the winter, the housings might become damaged. Please contact us with more details so we can better assist you. iSpring Water Systems 678-261-7611 support@ispringfilter.com **Q: I received this whole house filter and one of the cartridges is broken model fc25b. can i get a replacement of this broken cartridge?** A: allfilters.com I used iSpring for a while and then the types of filters ordered was so confusing......and its all made in China.......unlike advertised. So I switched to allfilters....now keep in mind that they don’t send one at a time....but the price difference, the nonconfusion, sent by USPS and customer support won me over. ALL MADE IN THE USA! Allfilters also sells the canisters. When ordering filters go by the size ei: 4 1/2” x 20” **Q: Do you still need a water softener with this if hardness is 250 ppm?** A: Hi there, It's optional but would help p[rolong the life of the filters if you install one. We usually recommend a water softener with TDS higher than 700 PPM. Please let us know if you have other concerns. Stay safe! iSpring Water Systems, LLC **Q: What pressure gauge is recommended to install pre and post filter that will work with 3/4" PEX supply line?** A: I use the one on a spin down pre filter and a 3/4” shark bite with gauge post filter ## Customer Reviews ### ⭐⭐⭐⭐⭐ Outstanding service and product *by A***R on January 7, 2025* I purchased an iSpring wall mounted three stage (canister) whole house water filtration system several years ago to replace a dual tank floor mounted system that took up too much room and did not back flush properly and could not deliver quality water results. The iSpring system takes up very little wall space and maintenance is easy, simply changing the three filters yearly based on our water usage. Customer service was great with Nick giving me sound advice regarding installation. A couple of years later he gave me good advice as to the use a heat gun to loosen tanks when I had overtightened two canisters. I recently learned that Nick is still providing customer service when I had a question regarding an order for replacement filters.We are serviced by a small water utility company which has pure water, but the water has high levels of sand and sometimes high levels of chlorine. The 5-micron sediment filter removes most of the sand and two CTO carbon block filters do a great job removing chlorine and any remaining sand. We do experience water line breakage occasionally which can introduce large amounts of sediment into the lines which is a health hazard and can damage water heaters, dish washers, and washing machines leading to premature failure. This is another reason to install a whole house system instead of point of source filters for sinks and lavatories. I do find the iSpring replacement filters high quality and reasonably priced particularly when purchased in cases of four like my recent order.Merlin ### ⭐⭐⭐⭐⭐ Great Customer Service *by S***R on April 7, 2025* iSpring products are terrific and I could not be happier with my water quality. I have had my system running flawlessly since 2017. Recently, I had a problem with a low flow rate on a newly installed filter. I contacted iSpring customer service and communicated with Julius. What a pleasure to receive such a prompt and courteous response. He understood the problem and arranged to ship a replacement. They have great products and it’s reassuring to know that they stand behind them. ### ⭐⭐⭐⭐⭐ Excellent product with excellent support *by R***O on March 5, 2025* Filter does an excellent job with my metals and the sulfur smell. I've been using the filter for 3 yrs and had a problem for the first time this year. The iSpring team, thanks Edwin, did a great job at resolving my issue quickly. I just purchased a new strainer to accompany this filter, it's an iSpring too. They are my go to for filtration. ## Frequently Bought Together - iSpring Whole House Water Filter Cartridge, Iron & Manganese Reducing Water Filter Whole House, 4.5" x 20", Model: FM25B - iSpring WSP-1000 Reusable Whole House Spin Down Sediment Water Filter, 1000 Micron, Flushable Prefilter Filtration, 20GPM, 1" MNPT + 3/4" FNPT, Brass - iSpring ORBX2 Replacement O-ring for Whole House Water Filtration Systems - Pack of 2 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/25182468-ispring-whole-house-water-filter-cartridge-iron-and-manganese-reducing](https://www.desertcart.us/products/25182468-ispring-whole-house-water-filter-cartridge-iron-and-manganese-reducing) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*