--- product_id: 81894987 title: "BW30-4040 Brackish Water Industrial Reverse Osmosis Membrane" brand: "dow filmtec" price: "2437.37 DT" currency: TND in_stock: true category: "Dow Filmtec" url: https://www.desertcart.tn/products/81894987-bw30-4040-brackish-water-industrial-reverse-osmosis-membrane store_origin: TN region: Tunisia --- # Max pressure drop 15 psig Wide pH cleaning range (1-13) Industry's thickest 34 mil feed spacer BW30-4040 Brackish Water Industrial Reverse Osmosis Membrane **Brand:** dow filmtec **Price:** 2437.37 DT **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water filtration game with industrial-grade resilience! ## Quick Answers - **What is this?** BW30-4040 Brackish Water Industrial Reverse Osmosis Membrane by dow filmtec - **How much does it cost?** 2437.37 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/81894987-bw30-4040-brackish-water-industrial-reverse-osmosis-membrane) ## Best For - dow filmtec enthusiasts ## Why This Product - Trusted dow filmtec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Cleaning Power:** Operates across extreme pH 1-13 for deep, effective membrane maintenance - • **Premium Material Durability:** Polyamide thin-film composite ensures long-lasting, reliable filtration - • **Unmatched Fouling Resistance:** Thick 34 mil feed spacer minimizes clogging for uninterrupted flow - • **Trusted Industrial Performance:** Consistent output tailored for light industrial and multi-membrane setups - • **Built for High-Pressure Systems:** Hard shell design withstands up to 15 psig pressure drop with ease ## Overview The Dow Filmtec BW30-4040 is a robust brackish water reverse osmosis membrane featuring the industry's thickest 34 mil feed spacer to reduce fouling, a wide pH cleaning range (1-13) for superior maintenance, and a hard shell exterior designed to handle pressure drops up to 15 psig. Engineered for light industrial use and multi-element housings, it delivers consistent, high-performance filtration with durable polyamide thin-film composite construction. ## Description Product Description The Dow Filmtec BW30-4040 brackish water reverse osmosis membrane elements provide consistent and outstanding system performance in light industrial applications. Elements with a hard shell exterior are recommended for systems with multiple-element housings containing three or more membranes, as they are designed to withstand higher pressure drops. From the Manufacturer The Dow Filmtec BW30-4040 brackish water reverse osmosis membrane elements provide consistent and outstanding system performance in light industrial applications. Elements with a hard shell exterior are recommended for systems with multiple-element housings containing three or more membranes, as they are designed to withstand higher pressure drops. ## Features - Features the industry's thickest feed spacer (34 mil), which lessens the impact of fouling - May be cleaned over a wide range of pH levels (pH 1-13) for maximum cleaning effectiveness - Maximum Pressure Drop: 15 psig - Free Chlorine Tolerance: <0.1 ppm ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00D43H4WC | | Best Sellers Rank | #599,909 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,527 in Replacement Under-Sink Water Filters | | Brand Name | Dow Filmtec | | Customer Reviews | 4.0 4.0 out of 5 stars (6) | | External Testing Certification | NSF | | Item Dimensions D x W x H | 4"D x 40"W x 4"H | | Item Weight | 7 pounds | | Manufacturer | Dow Filmtec | | Manufacturer Part Number | CWD-FILMTEC-BW30-4040 | | Material Type | Polyamide Thin-Film Composite | | Model Number | FILMTEC-BW30-4040 | | Number of Items | 1 | | Product Benefits | Offers improved performance, enhanced cleaning capabilities, and durability in various conditions. | | UPC | 701003117848 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 7 pounds - **Material:** Polyamide Thin-Film Composite - **Product Benefits:** Offers improved performance, enhanced cleaning capabilities, and durability in various conditions. - **Product Dimensions:** 4"D x 40"W x 4"H ## Images ![BW30-4040 Brackish Water Industrial Reverse Osmosis Membrane - Image 1](https://m.media-amazon.com/images/I/61GgFxG4QQL.jpg) ## Questions & Answers **Q: What pressure is this designed to operate?** A: 225 psi **Q: Weight of each membrane in a box** A: 10 lbs **Q: What pressure is this designed for? My system is 225 psi?** A: 225 **Q: is it membrane only or entire assembly including house, spacer and seal?** A: Just the membrane. The housing is separate. ## Frequently Bought Together - Dow Filmtec BW30-4040 Brackish Water Industrial Reverse Osmosis Membrane - lesolar 4040 Ro Membrane RO Membrane Housing 4 Inch Commercial Reverse Osmosis Membrane Housing 304 Stainless Steel Pressure Vessel 4"x40" 300 PSI 3/4" Feed and Drain Ports 1/4" Permeate Ports --- ## 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.tn/products/81894987-bw30-4040-brackish-water-industrial-reverse-osmosis-membrane](https://www.desertcart.tn/products/81894987-bw30-4040-brackish-water-industrial-reverse-osmosis-membrane) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-30*