--- product_id: 461254803 title: "BW-4040 Hydron High Performance Commercial and Industrial Membrane, 2400 GPD, 40\" x 4\"" brand: "hydronix" price: "€ 720.16" currency: EUR in_stock: true reviews_count: 5 category: "Hydronix" url: https://www.desertcart.hr/products/461254803-bw-4040-hydron-high-performance-commercial-and-industrial-membrane-2400 store_origin: HR region: Croatia --- # 2400 GPD ultra-high flow Fits standard 4x40 housings 99.0% contaminant rejection BW-4040 Hydron High Performance Commercial and Industrial Membrane, 2400 GPD, 40" x 4" **Brand:** hydronix **Price:** € 720.16 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water game with Hydronix – where performance meets precision! ## Quick Answers - **What is this?** BW-4040 Hydron High Performance Commercial and Industrial Membrane, 2400 GPD, 40" x 4" by hydronix - **How much does it cost?** € 720.16 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/461254803-bw-4040-hydron-high-performance-commercial-and-industrial-membrane-2400) ## Best For - hydronix enthusiasts ## Why This Product - Trusted hydronix brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Build:** Hard fiberglass shell ensures long-lasting protection and peak membrane performance - • **Powerhouse Performance:** Processes a massive 2400 gallons per day to keep your operations flowing - • **Seamless Compatibility:** Designed to fit most standard 4" x 40" commercial RO membrane housings effortlessly - • **Unmatched Water Purity:** Delivers 99.0% contaminant rejection for crystal-clear water every time - • **Trusted Global Standard:** Preferred replacement for top brands like GE Osmosis and Dow Filmtec, made with precision in Taiwan ## Overview The Hydronix BW-4040 is a high-performance commercial reverse osmosis membrane delivering 2400 gallons per day with a 99.0% contaminant rejection rate. Engineered with a durable fiberglass shell and compatible with standard 4" x 40" RO housings, it offers reliable, consistent water purification trusted worldwide as a premium replacement for leading membrane brands. ## Description Hydron BW-4040 Reverse Osmosis Membrane elements are 2400 gallon per day membranes with 99. 0% rejection and a minimum rejection rate of 98. 5% designed for commercial use. The BW-4040's advanced membrane technology and automated fabrication, allow these membranes to deliver consistent performance, superb contaminant reduction, and true reliability. Features that equipment suppliers, water treatment dealers and small water plant customers globally can rely on. Fits in standard 4"x 40" commercial RO membrane housings. Replacement for GE Osmosis Desal AG4040FF, GE Osmosis Desal AG4040TF, Dow Filmtec TW30-4040, CSM RE4040-BE and TW30-4040. Review: I bought this in March 2023 and it has met expectations. There was a noticeable improvement as soon as I replaced the old one with this new one. Since this purchase I have ordered an additional one to swap out with the second part of my House RO system Review: Just what I needed. ## Features - Hydron 2400 Gallon per day Commercial Membrane - Fits most standard 4x40 Commercial RO membrane housings - 2,400 GPD, 99.0% rejection and a minimum rejection rate of 98.5% - Hard fiberglass shell protects membrane and provides outstanding performance - Made in Taiwan ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01CFOGPXY | | Brand | Hydronix | | Customer Reviews | 4.5 4.5 out of 5 stars (113) | | Date First Available | 4 April 2019 | | Item Weight | 3.18 Kilograms | | Material | Polyamide Thin-Film Composite Fiberglass | | Model Number | BW-4040 | | Product Dimensions | 101.6 x 10.16 x 10.16 cm; 3.18 kg | ## Product Details - **External testing certification:** NSF - **Item weight:** 3.18 kg - **Material:** Polyamide Thin-Film Composite Fiberglass - **Product benefits:** Provides high-volume, high-purity water filtration for diverse applications - **Product dimensions:** 10.2D x 101.6W x 10.2H centimeters ## Images ![BW-4040 Hydron High Performance Commercial and Industrial Membrane, 2400 GPD, 40" x 4" - Image 1](https://m.media-amazon.com/images/I/51uOVPH8wfL.jpg) ## Questions & Answers **Q: Is this filter for low pressure ro system or hi pressure systems?** A: Permeate production is pretty much linear with pressure. I run mine at 80 to 100 psi and get 2.5 gpm from a two stage system - a total of three membranes. So far I am very pleased with the Hydron BW 4040 s. **Q: Is there a 2.5”X40” membrane?** A: Yes **Q: Is overnight shipping available** A: Possibly **Q: Can you town water through this ro?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***S on 11 August 2025* I bought this in March 2023 and it has met expectations. There was a noticeable improvement as soon as I replaced the old one with this new one. Since this purchase I have ordered an additional one to swap out with the second part of my House RO system ### ⭐⭐⭐⭐⭐ Review *by J***N on 21 December 2018* Just what I needed. ### ⭐⭐⭐⭐⭐ Review *by G***L on 18 August 2025* Membrane was delivered quickly and in good shape. FIrst time changing on my own. Was easy to pull old and insert new. Tested water quality in PPM. Before with old membrane was 65ppm asfterwards showed 45 ppm. Perfectly in range as it should be. Price was great compared to $800 water companie wanted to come change my RO membrane. WIll definitely be ordering an extra to have on hand. ## Frequently Bought Together - Hydron BW-4040 Reverse Osmosis Membrane – 4" x 40", 2400 GPD | High Performance for Commercial, Industrial, Agricultural, Whole House | Compatible with AG4040FF, AG4040TF, TW30-4040, RE4040-BE - Max Water - Heavy Duty - Reverse Osmosis 4040 Membrane Housing - 4" x 40" good for industrial use - 4040 housing - End Cap with 2 O-Rings for 4" Stainless Steel RO Membrane Housing --- ## 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.hr/products/461254803-bw-4040-hydron-high-performance-commercial-and-industrial-membrane-2400](https://www.desertcart.hr/products/461254803-bw-4040-hydron-high-performance-commercial-and-industrial-membrane-2400) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-08*