--- product_id: 42458443 title: "FC25B" brand: "ispring" price: "493 zΕ‚" currency: PLN in_stock: true reviews_count: 13 category: "I Spring" url: https://www.desertcart.pl/products/42458443-fc25b store_origin: PL region: Poland --- # up to 15 GPM flow rate coconut shell activated carbon 99% chlorine removal FC25B **Brand:** ispring **Price:** 493 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ’§ Elevate your home’s water game β€” because your family deserves the freshest flow! ## Quick Answers - **What is this?** FC25B by ispring - **How much does it cost?** 493 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/42458443-fc25b) ## 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 - β€’ **Eco-Chic Filtration:** Crafted from high-quality coconut shell carbon for superior contaminant adsorption and longevity. - β€’ **Certified Confidence:** NSF/ANSI tested to meet rigorous standards, ensuring safety and reliability you can trust. - β€’ **Effortless Maintenance:** Standard 20” x 4.5” size fits most housings with easy installation and minimal upkeep. - β€’ **Pure Water, Pure Power:** Removes up to 99% of chlorine for fresh, clean water throughout your home. - β€’ **Flow Without Compromise:** Maintains a robust 15 gallons per minute flow rate to keep your daily routine seamless. ## Overview The iSpring FC25B Whole House Water Filter features a 20” x 4.5” CTO carbon block cartridge made from premium coconut shell activated carbon. It effectively removes up to 99% of chlorine, taste, odor, and sediment while maintaining a high flow rate of up to 15 GPM. Certified to NSF/ANSI standards, this filter fits standard housings and offers easy installation and maintenance, delivering fresh, clean water to every tap in your home without stripping essential minerals. ## Description desertcart.com: iSpring FC25B Whole House Water Filter, CTO Carbon Block, 20” x 4.5” for Sediment & Chlorine Removal : Tools & Home Improvement Review: Good product - I change this filter anywhere from 6 months to a year depending on if I notice a change in the water. Most of the time it’s one year to match the timing of the sediment filter. I have the dual iSpring filter connected to incoming city water before hitting my Chlorine/Chloramine and Water softener combo before entering the home supply. The fridge filters it one more time. But it still tastes good from any tap in the home. Review: Best Filter I've Tried in 8 Years! - We have used a filtering system for over 8 years now. We live in a community with a water treatment system. It's not a complete filtering system and it also adds Chlorine. Yuk! In the beginning we used the Pentek FloPlus filters. They still go for $80 and up now on desertcart. Each time I replace a filter, I look for new alternatives. For instance, last time I found the Geekpure 20-Inch Big Blue Carbon Block Water Filter . It was close to 1/3 the price I was paying. It came with 5-star reviews. Why not! I usually know that a new filter is needed when the pressure drops. It didn't drop this time, but I looked to replace it after 10 months - a long time! This time I found this iSpring FC25B. It too was close to 1/3 the price of the Pentek with the greatest capacity of any other filter and the best promise of Chlorine removal. The pressure was great. There was not even a hint of chlorine or anything else. Great tasting water. That's what I'm looking for. Now, we'll see how long it lasts and the pressure keeps up. That's the final test. Installation is easy. Turn of water to filter. I keep bypass closed and water is directed only to outdoor hose hookup (so I can clean housing). Open any faucet in house to release pressure. Remove old filter and clean housing and install new filter. Change and lubricate O-ring (with vegetable grade lubricant). Screw housing back in "hand tight." Then with the housing wrench tighten a bit more. Finally, open valve to send water through the filter. It's usually about a 10-15 minute job. ## Features - Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25B carbon block water filter is specially designed to remove up to 99% of chlorine from water as well as taste and odor compounds, cloudiness, and chemicals. - Standard Size: Our FC25B whole house water filter fits standard housings that requires 20” x 4.5” water filter cartridges, including brand name models. The 20” x 4. 5” water filter cartridge has a minimum impact on water flow (up to 15 GPM) and require minimum maintenance - 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. Activated carbon is an effective adsorbent because it is a highly porous material and provides a large surface area to which contaminants may adsorb. This whole house water filter is tested by an independent third-party to meet NSF/ANSI standards. - Peace of Mind Customer Service: Register online to activate your manufacturer and 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! - Please Note: The water filter cartridges are individually wrapped to ensure freshness. Please unwrap the cartridges before use. Unlike an RO membrane, the filters don’t reduce Total Dissolved Solids (TDS), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01M1197LW | | Best Sellers Rank | #11,065 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Whole House Water Treatment Systems | | Brand Name | iSpring | | Customer Reviews | 4.6 4.6 out of 5 stars (905) | | Global Trade Identification Number | 00662425080250 | | Included Components | 1 Whole House CTO Carbon Block | | Installation Type | Under Sink | | Item Dimensions L x W x H | 5.98"L x 5.98"W x 22.01"H | | Item Type Name | Whole House CTO Carbon Block | | Item Weight | 2.36 Kilograms | | Manufacturer | iSpring Water Systems | | Material Type | Carbon Block | | Maximum Flow Rate | 15 Gallons Per Minute | | Model Name | High Capacity 20” x 4.5” Water Filter | | Model Number | 1 | | Other Special Features of the Product | Chlorine Reduction, NSF certified | | Power Source | Ac | | Purification Method | Activated Carbon, Carbon Block | | Supported Water TDS Level Maximum (PPM) | 1000 | | UPC | 662425080250 | | Unit Count | 1 Count | | Upper Temperature Rating | 125 Degrees Fahrenheit | ## Product Details - **Brand:** iSpring - **Included Components:** 1 Whole House CTO Carbon Block - **Installation Type:** Under Sink - **Item Weight:** 2.36 Kilograms - **Material:** Carbon Block - **Model Name:** High Capacity 20” x 4.5” Water Filter - **Power Source:** Ac - **Product Dimensions:** 5.98"L x 5.98"W x 22.01"H - **Purification Method:** Activated Carbon, Carbon Block - **Special Feature:** Chlorine Reduction, NSF certified ## Images ![FC25B - Image 1](https://m.media-amazon.com/images/I/61y2R3tF6qL.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 ### ⭐⭐⭐⭐⭐ Good product *by M***S on March 10, 2026* I change this filter anywhere from 6 months to a year depending on if I notice a change in the water. Most of the time it’s one year to match the timing of the sediment filter. I have the dual iSpring filter connected to incoming city water before hitting my Chlorine/Chloramine and Water softener combo before entering the home supply. The fridge filters it one more time. But it still tastes good from any tap in the home. ### ⭐⭐⭐⭐⭐ Best Filter I've Tried in 8 Years! *by B***N on June 27, 2020* We have used a filtering system for over 8 years now. We live in a community with a water treatment system. It's not a complete filtering system and it also adds Chlorine. Yuk! In the beginning we used the Pentek FloPlus filters. They still go for $80 and up now on Amazon. Each time I replace a filter, I look for new alternatives. For instance, last time I found the Geekpure 20-Inch Big Blue Carbon Block Water Filter . It was close to 1/3 the price I was paying. It came with 5-star reviews. Why not! I usually know that a new filter is needed when the pressure drops. It didn't drop this time, but I looked to replace it after 10 months - a long time! This time I found this iSpring FC25B. It too was close to 1/3 the price of the Pentek with the greatest capacity of any other filter and the best promise of Chlorine removal. The pressure was great. There was not even a hint of chlorine or anything else. Great tasting water. That's what I'm looking for. Now, we'll see how long it lasts and the pressure keeps up. That's the final test. Installation is easy. Turn of water to filter. I keep bypass closed and water is directed only to outdoor hose hookup (so I can clean housing). Open any faucet in house to release pressure. Remove old filter and clean housing and install new filter. Change and lubricate O-ring (with vegetable grade lubricant). Screw housing back in "hand tight." Then with the housing wrench tighten a bit more. Finally, open valve to send water through the filter. It's usually about a 10-15 minute job. ### ⭐⭐⭐⭐⭐ It does the job well. *by L***H on December 10, 2025* This works well. I had it on a regular subscription until my wife lost the credit card and I forgot to update it in Amazon. Now I wait until our well water starts to get a little funky, and I buy a new one (the filter, not my wife) which clears up the funk. ## Frequently Bought Together - iSpring FC25B NSF Certified High Capacity Big Blue Whole House Water Filter CTO Carbon Block, 4.5" x 20" - iSpring FM25B 4.5" x 20" Big Blue High Capacity Iron Manganese Reducing Replacement Water Filter --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/42458443-fc25b](https://www.desertcart.pl/products/42458443-fc25b) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-28*