--- product_id: 19109530 title: "iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4" brand: "ispring" price: "¥52047" currency: JPY in_stock: true category: "I Spring" url: https://www.desertcart.jp/products/19109530-ispring-fc25x4-high-capacity-20-x-2-5-water-filter store_origin: JP region: Japan --- # High-quality coconut shell carbon 99% chlorine removal Fits standard 20"x2.5" housings iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 **Brand:** ispring **Price:** ¥52047 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your hydration game—because your family deserves nothing less! ## Quick Answers - **What is this?** iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 by ispring - **How much does it cost?** ¥52047 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/19109530-ispring-fc25x4-high-capacity-20-x-2-5-water-filter) ## 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 - • **Pure Water, Pure Life:** Removes up to 99% of chlorine and odors for fresh, clean water every time. - • **Flow Without Compromise:** Maintains optimal water flow up to 12 GPM, ensuring no slowdown in your daily routine. - • **Long-Lasting Performance:** Filters up to 30,000 gallons—enough for a family of four for six months. - • **Trusted Quality & Support:** NSF/ANSI certified with lifetime free tech support and extended warranty registration. - • **Universal Fit, Zero Hassle:** Designed to seamlessly fit standard 20" x 2.5" housings including top brand models. ## Overview The iSpring FC25X4 pack of four 20" x 2.5" CTO carbon block water filter cartridges uses premium coconut shell carbon to remove up to 99% of chlorine and other contaminants, improving taste and odor without stripping healthy minerals. Certified to NSF/ANSI standards, these filters support a flow rate of up to 12 GPM and last for 30,000 gallons, making them ideal for families seeking reliable, long-lasting whole house water filtration with trusted U.S.-based customer support. ## Description iSpring 20"X2.5" Whole House Water Filter CTO Carbon Block - Pack of 4 ## Features - Protect Your Family and Household Appliance from Chlorine and More: Say goodbye to smelly, bad tasting water! The FC25 carbon block filter is specially designed to remove up to 99% of chlorine from water as well as various other contaminants that cause unpleasant odors and tastes. - Standard Size: Our filter set fits standard 20” x 2.5” housings, including brand name models. - Top-Notch Quality: Our FC25 CTO Carbon Block filters are made of high-quality coconut shell carbon for maximum filtration efficiency and filter life. They are tested by an independent third-party to meet NSF/ANSI standards. The filters have a capacity of 30,000 gallons of water, enough to supply a family of four with clean water for half a year. The 20” x 2.5” filter cartridges have a minimum impact on water flow (up to 12 GPM) and require minimum maintenance. - Peace of Mind Customer Service: Register online to activate your extended manufacturer warranty 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 products please reach out to us immediately. We are happy to help! - Please Note: The 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 | B00866HJ7C | | Best Sellers Rank | #268,418 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,154 in Water Coolers & Filters #22,396 in Kitchen & Bath Fixtures | | Brand Name | iSpring | | Customer Reviews | 4.1 4.1 out of 5 stars (48) | | External Testing Certification | ANSI, NSF | | Item Dimensions D x W x H | 2.5"D x 2.5"W x 20"H | | Item Weight | 8 ounces | | Manufacturer | iSpring Water Systems | | Manufacturer Part Number | FC25x4 | | Material Type | Carbon Fiber | | Model Number | FC25X4 | | Number of Items | 4 | | Number of Packs | 4 | | Product Benefits | Reduces Chlorine | | Set Name | Set of 4 | | UPC | 662425048182 | | Unit Count | 4 Count | ## Product Details - **External Testing Certification:** ANSI, NSF - **Item Weight:** 8 ounces - **Material:** Carbon Fiber - **Product Benefits:** Reduces Chlorine - **Product Dimensions:** 2.5"D x 2.5"W x 20"H ## Images ![iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/81psFt26pYL.jpg) ![iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - Image 2](https://m.media-amazon.com/images/I/51fp4krY3fL.jpg) ![iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - Image 3](https://m.media-amazon.com/images/I/51cxux7iCwL.jpg) ![iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - Image 4](https://m.media-amazon.com/images/I/51Q-CXuQM6L.jpg) ![iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - Image 5](https://m.media-amazon.com/images/I/51n6KZDYszL.jpg) ## Frequently Bought Together - iSpring FC25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - CTO Carbon Block - Fits WCB32C, WCB32O & RCB3P - Pack of 4 - iSpring FP25X4 High Capacity 20” x 2.5” Water Replacement Cartridges Fine Sediment Filter, 5 Micron, 4 pieces, White, 4 Piece - iSpring FG25X4 High Capacity 20” x 2.5” Water Filter Replacement Cartridges - Granular Activated Carbon - Fits RCB3P Reverse Osmosis System and other 20” x 2.5” Systems - Pack of 4 --- ## 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.jp/products/19109530-ispring-fc25x4-high-capacity-20-x-2-5-water-filter](https://www.desertcart.jp/products/19109530-ispring-fc25x4-high-capacity-20-x-2-5-water-filter) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-21*