--- product_id: 44675717 title: "RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0\"x12\" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System" brand: "membrane solutions" price: "86945CFA" currency: XOF in_stock: true reviews_count: 13 url: https://www.desertcart.sn/products/44675717-ro-membrane-400-gpd-reverse-osmosis-membrane-3-0x12-water store_origin: SN region: Senegal --- # 400 GPD high flow capacity 0.0001-micron TFC filtration precision 97% stabilized salt rejection RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0"x12" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System **Brand:** membrane solutions **Price:** 86945CFA **Availability:** ✅ In Stock ## Summary > 💧 Drink Pure, Live Elevated – The Membrane That Means Business ## Quick Answers - **What is this?** RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0"x12" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System by membrane solutions - **How much does it cost?** 86945CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/44675717-ro-membrane-400-gpd-reverse-osmosis-membrane-3-0x12-water) ## Best For - membrane solutions enthusiasts ## Why This Product - Trusted membrane solutions brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ultra-High Flow Rate:** Delivers a powerful 400 gallons per day to keep your hydration game strong. - • **Long-Lasting Durability:** Engineered to last 2-3 years, giving you peace of mind and fewer replacements. - • **Elite Contaminant Defense:** Blocks 99%+ of heavy metals and impurities for crystal-clear, safe water. - • **Precision Filtration Tech:** 0.0001-micron Thin Film Composite membrane ensures next-level purity. - • **Certified Quality Assurance:** NSF/ANSI 58 tested for trusted, industry-leading performance. ## Overview The RO Membrane 400 GPD by Membrane Solutions is a premium 3"x12" reverse osmosis filter designed for under-sink home and light commercial water purification. Featuring a 0.0001-micron Thin Film Composite membrane, it achieves a 97% stabilized salt rejection and removes over 99% of contaminants including heavy metals and harmful minerals. Certified to NSF/ANSI 58 standards, this membrane delivers high flow rates and long-lasting performance, typically lasting 2-3 years depending on water quality. ## Description Residential Reverse Osmosis(RO) systems are widely used to provide water for families and light-commercial use. As the main filtration stage of the RO filtration system, MS RO membranes deliver consistent performance for all users with advanced membrane technology and automated spiral-wound fabrication. MS RO membrane elements, NSF/ANSI Standard 58, have a high permeated flow while keeping a 99% TDS removal rate, and stabilized salt rejection rate by 97%. It can efficiently remove contaminants like heavy metals including primary fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates, as well as organic, rubber mass, harmful minerals, and another soluble salt from water. Disclaimer: ## Features - Membrane Solutions ROULP-3012-400 reverse osmosis membrane for home drinking water treatment or maple syrup filter systems are among the most reliable and consistent elements in the industry. - With the industry-standard 12" x 3" size, this high capacity RO element fits most standard 3012 RO housing for the light commercial reverse osmosis water systems. - Our membrane elements are shipped dry in an original sealed package for convenient handling and long shelf-life. The membrane normally lasts about 2-3 years depending on your source water quality. - 400 GPD RO membrane with a high 97% stabilized salt rejection rate. Hundreds of impurities are reduced by over 99% through the 0.0001-micron TFC membrane layer, including heavy metals (fluoride, calcium, magnesium, lead, colloids, chromium, and nitrates), organic materials, and harmful minerals, including other soluble salts found in water resources. - MS Reverse Osmosis (RO) membranes are made from 100% food-grade Thin Film Composite (TFC) material for ultimate purification performance with high permeate flow, tested by an independent third-party to meet NSF/ANSI 58 standards - Tips: Recommend work pressure is 100 psi when using this product in a Maple Syrup reverse osmosis system. And we suggest heating and maintaining the raw sap at 104°F(40°C) to prevent clog on the membrane while keeping it under 113°F(45°C) to avoid damage to the membrane due to over-high temperature. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B071SGLF18 | | Best Sellers Rank | #10,363 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #83 in Replacement Under-Sink Water Filters | | Brand Name | Membrane Solutions | | Customer Reviews | 4.6 4.6 out of 5 stars (3,199) 4.6 out of 5 stars | | Eu Spare Part Availability Duration | 2 Years | | External Testing Certification | NSF | | Global Trade Identification Number | 00850071881868 | | Item Dimensions D X W X H | 3"D x 3"W x 12"H | | Item Weight | 1 Pounds | | Manufacturer | Membrane Solutions Corp | | Manufacturer Part Number | unknown | | Material Type | Polyamide Thin-Film Composite | | Model Number | ROULP-3012-400 | | Number Of Items | 1 | | Product Benefits | Reduces TDS | | Unit Count | 1.0 Count | | Upc | 850071881868 | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 1 Pounds - **Material:** Polyamide Thin-Film Composite - **Product Benefits:** Reduces TDS - **Product Dimensions:** 3"D x 3"W x 12"H ## Images ![RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0"x12" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System - Image 1](https://m.media-amazon.com/images/I/51xGrsk-ZjL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ RO membrane cartridge. *by on Reviewed in the United States April 27, 2026* Perfect fit for my RO BUDDIE. Easy to install. Output RO water PPM is around 4 to 5 ppm.Great way to rejuvenate my RO system. Great value. ### ⭐⭐⭐⭐⭐ Lower measurement *by on Reviewed in the United States March 15, 2026* Great filter, arrived quickly and price is good. Easy to install and package well. Water tastes great. TDS measures 29ppm after install before it was 80ppm. Water at non filter, measured 600ppm. The 29ppm will drop after some use. ### ⭐⭐⭐⭐⭐ Reliable, durable, and great support for maple sap concentration *by on Reviewed in the United States May 1, 2026* I use the Membrane Solutions 400 GPD RO membrane for concentrating maple sap, and it’s been a strong performer. It consistently boosts sugar concentration, cutting boil time and fuel use. Even when pushed toward its upper performance limits, it continues to run reliably without major drop-off when the system is set up properly.The membrane cleans up very well and has held performance over multiple seasons with proper flushing and storage—definitely adds to its value.Customer service is also excellent. They were responsive and helpful with setup questions, which is a big plus when adapting this for sap instead of standard water use.Bottom line: Great performance, easy to maintain, long-lasting, and well-supported. I’d buy it again. ## Frequently Bought Together - Membrane Solutions RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0"x12" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System - Membrane Solutions 3012 RO Membrane Housing Kit, Universal for Semi Commercial 200/300/400 GPD Reverse Osmosis Water Filter Systems, RO Filter Housing Wrench Fittings Set - PUREPLUS 5 Micron 10" x 2.5" Whole House Sediment Home Water Filter Cartridge Replacement for Any 10 inch RO Unit, Culligan P5, Aqua-Pure AP110, Dupont WFPFC5002, CFS10, WHKF-G05, 4Pack --- ## 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.sn/products/44675717-ro-membrane-400-gpd-reverse-osmosis-membrane-3-0x12-water](https://www.desertcart.sn/products/44675717-ro-membrane-400-gpd-reverse-osmosis-membrane-3-0x12-water) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-10*