--- product_id: 53005322 title: "F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White" brand: "ispring" price: "£19.37" currency: GBP in_stock: true reviews_count: 13 category: "I Spring" url: https://www.desertcart.co.uk/products/53005322-f3-6-month-prefilter-replacement-supply-filter-cartridge-pack-set store_origin: GB region: United Kingdom --- # 6-month high capacity lifespan Premium coconut shell activated carbon 3-stage advanced filtration system F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White **Brand:** ispring **Price:** £19.37 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your hydration game with iSpring’s triple-filter power! ## Quick Answers - **What is this?** F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White by ispring - **How much does it cost?** £19.37 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/53005322-f3-6-month-prefilter-replacement-supply-filter-cartridge-pack-set) ## 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 - • **Premium Carbon Tech:** High-quality coconut shell carbon with ultra-fine 1.5mm pores maximizes contaminant removal and filter longevity. - • **Triple-Stage Purity:** Sediment, GAC, and CTO filters work in harmony to deliver crystal-clear water every time. - • **Hassle-Free Hydration:** Individually wrapped cartridges ensure freshness and easy installation—stay ahead with clean water on demand. - • **Extended Membrane Life:** Innovative prefilter design protects your RO membrane, reducing maintenance costs and downtime. - • **Effortless Compatibility:** Fits most standard RO systems including iSpring RCC7 for seamless replacement. ## Overview The iSpring F3 6-Month Prefilter Replacement Pack includes three premium 10" x 2.5" cartridges—sediment, granular activated carbon, and carbon block filters—designed to extend the life of your reverse osmosis membrane while delivering clean, safe, and great-tasting water. Compatible with most standard RO systems like the iSpring RCC7, this pack offers a 6-month high-capacity filtration solution featuring advanced coconut shell carbon technology for superior contaminant removal. ## Description Product Description sediment filter The sediment filter acts as the first barrier in the reverse osmosis system by removing solid particles such as silt, rust and dirt from the water and reducing a significant percentage of pollutants in the water. It prevents the other filters from clogging with fine particles and reduces the risk of damage to the other components. The iSpring First Stage Sediment Filter (FP15) is 5 microns in size, making it perfect for catching most fine sediments in urban water and avoiding problems caused by clogging and pressure loss with filters that have a smaller micron size. Granular activated carbon filter Activated carbon filters can trap and absorb organic chemicals and chlorine from the water as they can mechanically filter and physically adsorb. It can efficiently remove odours and improve the taste of the water. In addition, the iSpring activated carbon filter contains the 2nd Level (FG15) is a special carbon medium that filters out impurities from the water and efficiently protects and extends the life of the reverse osmosis membrane. activated carbon block filter Activated carbon filters can effectively catch and absorb organic chemicals and chlorine from the water as they mechanically filter and physically adsorb. It can efficiently remove odours and improve the taste of the water. Activated carbon filters can effectively catch and absorb organic chemicals and chlorine from the water as they can mechanically filter and physically adsorb. It can efficiently remove odours and improve the taste of the water. The iSpring 5th Stage Post Carbon Filter (FT15) works as the final stage in the reverse osmosis system, capturing all particles that have accumulated in the tank before pure water is delivered to the tap. It can last up to 12 months, depending on the water source and consumption. Review: It wouldn't hurt to try it for 1 year. Might be surprised - No problems with my first set, no problems with my second set all works well. Glass on the left old filter water, glass on the right new filtered water. Without send ending the water to a laboratory for testing i cant say 100% whats been cleaned out. But the orange specs i think is iorn and the black filter who knows but there is a difference with using filters. Review: Great value - Great value ## Features - Individually wrapped 6-month high capacity prefilter replacement cartridge pack for most standard RO filtration systems. - 3 pieces of 10" x 2. 5" replacement water filters included: 1x sediment filters, 1x granular activated carbon filters, and 1x carbon block filters. - This filter pack does NOT include an RO membrane. - Experience clean, safe, and good-tasting water every time you turn on the faucet. - If you have trouble installing the filters, please refer to the user manual or contact us. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NQF490I | | Benefits | Delivers clean, safe and good tasting water | | Best Sellers Rank | 12,472 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Under-Sink Filters | | Brand | iSpring | | Brand Name | iSpring | | Compatible Water Purifier Models | iSpring RCC7 | | Country Of Origin | China | | Customer Reviews | 4.7 out of 5 stars 2,405 Reviews | | EU Spare Part Availability Duration | 9 Months | | External Testing Certification | ANSI | | External testing certification | ANSI | | Global Trade Identification Number | 00662425070145 | | Included Components | Water filters | | Item Dimensions D x W x H | 21.5D x 8.5W x 27.2H centimetres | | Item Type Name | 6 momth Cartridge | | Item Weight | 0.01 Ounces | | Item weight | 0.01 Ounces | | Manufacture Year | 2021 | | Manufacturer | iSpring | | Manufacturer Part Number | F3 | | Material | Activated carbon , Sediment | | Material Type | Activated carbon, Sediment | | Model Number | F3 | | Number of Items | 3 | | Product benefits | Delivers clean, safe and good tasting water | | Product dimensions | 21.5D x 8.5W x 27.2H centimetres | | Set Name | Replacement Filter Pack Set | | UPC | 662425070145 | | Unit Count | 1.0 count | ## Product Details - **External testing certification:** ANSI - **Item weight:** 0.01 Ounces - **Material:** Activated carbon, Sediment - **Product benefits:** Delivers clean, safe and good tasting water - **Product dimensions:** 21.5D x 8.5W x 27.2H centimetres ## Images ![F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White - Image 1](https://m.media-amazon.com/images/I/71do8xBHSiL.jpg) ![F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White - Image 2](https://m.media-amazon.com/images/I/71nWeV176YL.jpg) ![F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White - Image 3](https://m.media-amazon.com/images/I/71s13-IdA-L.jpg) ![F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White - Image 4](https://m.media-amazon.com/images/I/71L1eHpcH9L.jpg) ![F3 6-Month Prefilter Replacement Supply Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems, F3, White - Image 5](https://m.media-amazon.com/images/I/71lnILeqhKL.jpg) ## Questions & Answers **Q: Can this set of replacement filters be used for the iSpring US31?** A: Hi, Yes, these filters are compatible with the unit model US31. For more details, please contact us at (678)261-7611. Regards, iSpring Water Systems, LLC **Q: Is the water supposed to come out foggy and fizzy?** A: Hi Ann, Yes, for a week or two, the water might come out cloudy due to the trapped air bubbles in the system. In time, these will dissipate and your water will begin to clear up. If you have any questions or need additional assistance, please contact us at support@123filter.com or call us at (678) 261-7611. Thanks, iSpring Water Systems, LLC **Q: Will these cartridges work on an existing Culligan RO system? How will I know? Thanks.** A: If the size of filter is the same and the end deals are the same then, I think they should work. **Q: Can we use this package for WCC31?** A: Thanks for the question! You can certainly use this filter pack for the WCC31. We use industry standard filters, so each of the 2.5" x 10" cartridges and filter packs are completely interchangeable with each other. ## Customer Reviews ### ⭐⭐⭐⭐⭐ It wouldn't hurt to try it for 1 year. Might be surprised *by B***N on 8 December 2025* No problems with my first set, no problems with my second set all works well. Glass on the left old filter water, glass on the right new filtered water. Without send ending the water to a laboratory for testing i cant say 100% whats been cleaned out. But the orange specs i think is iorn and the black filter who knows but there is a difference with using filters. ### ⭐⭐⭐⭐⭐ Great value *by J***G on 1 January 2026* Great value ### ⭐⭐⭐⭐⭐ Buy These *by M***E on 30 May 2025* I have a pond and to reduce the heavy metals when topping up I use these in my filtration , does the job good quality and the value for money means I can change my filters more often than recommended , easy to use quick delivery 😀😀😀 ## Frequently Bought Together - iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems - iSpring US31 Classic 3-Stage Under Sink Water Filtration System for Drinking, Tankless, High Capacity, Sediment + GAC + Carbon --- ## 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.co.uk/products/53005322-f3-6-month-prefilter-replacement-supply-filter-cartridge-pack-set](https://www.desertcart.co.uk/products/53005322-f3-6-month-prefilter-replacement-supply-filter-cartridge-pack-set) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-01*