--- product_id: 44675717 title: "ROULP-3012-400" brand: "membrane solutions" price: "€ 125.95" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.be/products/44675717-roulp-3012-400 store_origin: BE region: Belgium --- # 400 GPD high flow capacity 0.0001-micron TFC filtration 97% stabilized salt rejection ROULP-3012-400 **Brand:** membrane solutions **Price:** € 125.95 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water, elevate your life — pure refreshment on demand! ## Quick Answers - **What is this?** ROULP-3012-400 by membrane solutions - **How much does it cost?** € 125.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/44675717-roulp-3012-400) ## 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 - • **Seamless Fit:** Standard 3"x12" size fits most under-sink RO systems for effortless upgrades. - • **Pure Powerhouse:** Delivers a robust 400 gallons per day to keep your hydration game strong. - • **Elite Filtration:** Blocks 99%+ of impurities including heavy metals and harmful minerals for crystal-clear water. - • **Certified Confidence:** NSF/ANSI 58 tested and approved for uncompromising water safety. - • **Long-Lasting Freshness:** Dry-shipped and durable membrane lasts 2-3 years, ensuring consistent premium water quality. ## Overview The Membrane Solutions 400 GPD RO Membrane is a premium 3"x12" reverse osmosis filter designed for under-sink home water purifiers. Featuring a 0.0001-micron Thin Film Composite membrane, it achieves a 97% salt rejection rate and removes over 99% of contaminants including heavy metals and organic materials. Certified to NSF/ANSI 58 standards, this membrane delivers high flow and long-lasting performance, typically lasting 2-3 years depending on water quality. Its universal sizing ensures compatibility with most standard RO housings, making it a reliable upgrade for clean, crisp drinking water. ## Description Buy Membrane Solutions RO Membrane, 400 GPD Reverse Osmosis Membrane, 3.0"x12" Water Filter Replacement for Under Sink Home Drinking RO Water Purifier System: Replacement Under-Sink Water Filters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Best for me - This is my goto membrane for my RO system. I've had good luck with them and am pleased with the price and performance. Review: Lower measurement - 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. ## 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 | #8,335 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Replacement Under-Sink Water Filters | | Brand Name | Membrane Solutions | | Customer Reviews | 4.6 4.6 out of 5 stars (3,176) | | 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 | | UPC | 850071881868 | | Unit Count | 1.0 Count | ## 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 ![ROULP-3012-400 - Image 1](https://m.media-amazon.com/images/I/51xGrsk-ZjL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best for me *by H***L on February 21, 2026* This is my goto membrane for my RO system. I've had good luck with them and am pleased with the price and performance. ### ⭐⭐⭐⭐⭐ Lower measurement *by M***R on 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. ### ⭐⭐⭐⭐⭐ Perfect fit and nice GPD output upgrade for my RO system. *by M***D on February 28, 2026* I waited way too long to replace my previous membrane. Almost 20 years! This replacement fit perfectly and I'm very happy to have the higher GPD output. Quality seems to be excellent. I won't wait 20 years next time to make a replacement. I could tell the RO water quality was back to what it should be after making the replacement. ## 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.be/products/44675717-roulp-3012-400](https://www.desertcart.be/products/44675717-roulp-3012-400) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-08*