--- product_id: 144929098 title: "- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4\" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System" brand: "membrane solutions" price: "52880CFA" currency: XOF in_stock: true reviews_count: 10 category: "Membrane Solutions" url: https://www.desertcart.sn/products/144929098-75-gpd-ro-membrane-reverse-osmosis-membrane-with-membrane-housing store_origin: SN region: Senegal --- # ANSI, NSF certified 75 GPD 0.1nm filtration - 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System **Brand:** membrane solutions **Price:** 52880CFA **Availability:** ✅ In Stock ## Summary > 💦 Drink Pure, Live Pure! ## Quick Answers - **What is this?** - 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System by membrane solutions - **How much does it cost?** 52880CFA 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/144929098-75-gpd-ro-membrane-reverse-osmosis-membrane-with-membrane-housing) ## 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 - • **DIY RO System:** Create your own water purification solution effortlessly! - • **Quality Assurance:** 100% performance tested for reliability and taste. - • **High Purification Rate:** Enjoy 75 gallons of pure water daily, just 15 minutes for a gallon! - • **Versatile Applications:** Perfect for kitchens, DIY projects, and aquariums. - • **Advanced Filtration Technology:** Removes up to 97% of contaminants for peace of mind. ## Overview The Membrane Solutions 75 GPD RO Membrane is a high-performance reverse osmosis system designed for DIY enthusiasts. It includes a 75 GPD membrane, housing, wrench, and quick-connect fittings, ensuring you can produce up to 75 gallons of purified water daily. With a filtration capability of 0.1nm, it effectively removes up to 97% of total dissolved solids, making it ideal for various applications, including home drinking water, maple syrup production, and aquariums. Certified by ANSI and NSF, this product guarantees quality and safety. ## Description Filters for Your RO System Visit the Store Filters for Your RO System Visit the Store More RO Membrane and Housings Visit the Store More RO Membrane and Housings More Pre-filters Available Visit the Store More Pre-filters Available Review: It work for the price - the membrane work as expected. Review: Good production, missing RO check - We have very hard well water here, and have to RO all of our drinking, cooking, and gardening water. I have owned two packaged systems and built 3 from scratch for myself, family, and neighbors, so I have a lil bit of experience on what works and what does not. I upgraded from 2x 150GPD rated membranes that had been in service for nearly 2 years to this membrane. Very good production in the first 3 days in service. No RO membrane I have ever tried produces 100% of its label value under home pressure and temperature conditions. If you're getting 50% of label you're doing great, 30% of label is pretty normal. I am guessing I am getting about 120GPD actual output from this membrane, which is like 30% of label, so I am pretty satisfied. Injection is 80 psi, ~15C temp, ~1200ppm 7.4pH well water, and I get about 30ppm finished water. So if you're wanting this for super polished water for aquariums, its probably not a good choice. But for home drinking and cooking and gardening water, it is a great choice. A few minerals left in it helps to keep the pH from crashing too low once the water gets a chance to interact with the CO2 from the air to make carbonic acid. Suggestion to Membrane Solutions: add the integrated check valve fitting instead of just a straight elbow! Wrap all the fittings in PTFE tape! I usually do 6 wraps of .35 thickness, but you probably want 10 wraps on these fittings as the threads have a lot of clearance with the housing. Overall, great value for money. Think I will be sticking with Membrane Solutions brand from here on out. ## Features - [DIY RO System] What You'll Get: 75 GPD RO Membrane*1, 12" X 2.0" Membrane Housing*1, Wrench*1, Quick Connect Fittings*3. Make your own reverse osmosis water filter right now! You don't need to buy an expensive all-in-one solution. - [75 Gallon Per Day] Membrane Solutions High-Quality Reverse Osmosis Membrane can produce 75 gallons purified water per day (3.1 gallons / 11.8 liters per hour). 8 glasses of 8oz cups of water are recommended 1 gallon. You can get a gallon of water in about 15 minutes. You just need to open the faucet of the RO purifier using this RO membrane, you can get drinking water. - [High Contaminant Rejection] Remove up to 97% of total dissolved solids from water. This membrane is only 0.1nm, 50 times smaller than even the heavy metals. So these RO membranes can easily remove heavy metal, harmful minerals and other soluble salts from water. Enjoy Your Water with Confidence! - [100% Performance and Quality Tested] Membrane Solutions RO membrane uses the most advanced membrane film technology and manufacturing processes, verified by independent laboratory testing. These reverse osmosis membranes are made of the highest quality Polyamide Thin-Film Composite ensures that you get the most filtration and surface area coverage, let you enjoy high-quality taste. - [About RO GPD Ratings] GPD ratings are based on tests performed under specific water conditions (Urban tap water, 25°C / 77°F, 100 PSI). Every time the temperature drops by 1°C / 33.8°F, the GPD Rating drops by about 3-4 %; every time the pressure drops by 1 PSI, the GPD Rating drops by about 1 - 1.5%. For example, a standard 75GPD RO membrane, at a temperature of 10°C / 50°F (or a pressure of 50 PSI), the GPD Rating is about 37.5. - [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 | B07H31GYTT | | Best Sellers Rank | #202,332 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,401 in Replacement Under-Sink Water Filters | | Brand | Membrane Solutions | | Brand Name | Membrane Solutions | | Customer Reviews | 4.4 out of 5 stars 557 Reviews | | External Testing Certification | ANSI, NSF | | Global Trade Identification Number | 00850071881929 | | Item Dimensions D x W x H | 2"D x 2"W x 12"H | | Item Weight | 0.9 Pounds | | Manufacturer | Membrane Solutions | | Manufacturer Part Number | ROSL1812-75G | | Material | Polyamide Thin-Film Composite | | Material Type | Polyamide Thin-Film Composite | | Model Number | ROSL1812-75G | | Number of Items | 1 | | Product Benefits | High rejection rate for lower TDS, standard size for various usages like kitchen, maple syrup DIY, and aquariums. Product Benefits High rejection rate for lower TDS, standard size for various usages like kitchen, maple syrup DIY, and aquariums. See more | | Product Dimensions | 2"D x 2"W x 12"H | | Set Name | 75 GPD Kit | | UPC | 850071881929 | | Unit Count | 1.0 Count | ## Product Details - **Material:** Polyamide Thin-Film Composite - **Product Dimensions:** 2"D x 2"W x 12"H - **Item Weight:** 14.4 ounces - **External Testing Certification:** ANSI, NSF - **Product Benefits:** High rejection rate for lower TDS, standard size for various usages like kitchen, maple syrup DIY, and aquariums. ## Images ![- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Image 1](https://m.media-amazon.com/images/I/61etvXAJjwS.jpg) ![- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Image 2](https://m.media-amazon.com/images/I/81hPEs52uYL.jpg) ![- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Image 3](https://m.media-amazon.com/images/I/71gU1o0piVL.jpg) ![- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Image 4](https://m.media-amazon.com/images/I/71IDgcnJScS.jpg) ![- 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Image 5](https://m.media-amazon.com/images/I/61oi5evheoS.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Does it constantly discharge reject water even when your not using pure water** A: YES, you need to close both outputs or water will discharge from the brine. To stop it from running constantly most use an ASV (Automatic shutoff valve). You will also need a flow restrictor on the Brine, sized appropriately for the RO membrane **Q: what is the wastewater to purified water ratio? can the flow restrictor be bypassed to flush?** A: The purified water to wastewater ratio is 1/2. **Q: Why waste water line seems to be running a lot of water ?** A: Waste water is usually 1gallon RO/DI to 2 to 4 gallons waste. I brought my waste to 1 -2 gallaons of waste to 1 gallon Ro/DI with a booster pump. I also added and upgradeed from 100G to 200Gallon system. Just added another 100G ro/di canister. use the waste water for plants, and garden. If ypu can get waste tube to go out and into a diffrent barrel or yard, you can recycle it. booster pump helps to reduce the waste, unfortunately there is no other way to completely reduce it to zero. good luck. **Q: Can you suggest asov for the 400g system? it has 3/8 input x 1/4 output - all of the asov on amazon are 1/4 x 1/4 or (rare) 3/8/ x 3/8** A: Chemo “Harrington Plastics “ online ## Customer Reviews ### ⭐⭐⭐⭐⭐ It work for the price *by D***N on February 1, 2026* the membrane work as expected. ### ⭐⭐⭐⭐⭐ Good production, missing RO check *by D***H on August 1, 2023* We have very hard well water here, and have to RO all of our drinking, cooking, and gardening water. I have owned two packaged systems and built 3 from scratch for myself, family, and neighbors, so I have a lil bit of experience on what works and what does not. I upgraded from 2x 150GPD rated membranes that had been in service for nearly 2 years to this membrane. Very good production in the first 3 days in service. No RO membrane I have ever tried produces 100% of its label value under home pressure and temperature conditions. If you're getting 50% of label you're doing great, 30% of label is pretty normal. I am guessing I am getting about 120GPD actual output from this membrane, which is like 30% of label, so I am pretty satisfied. Injection is 80 psi, ~15C temp, ~1200ppm 7.4pH well water, and I get about 30ppm finished water. So if you're wanting this for super polished water for aquariums, its probably not a good choice. But for home drinking and cooking and gardening water, it is a great choice. A few minerals left in it helps to keep the pH from crashing too low once the water gets a chance to interact with the CO2 from the air to make carbonic acid. Suggestion to Membrane Solutions: add the integrated check valve fitting instead of just a straight elbow! Wrap all the fittings in PTFE tape! I usually do 6 wraps of .35 thickness, but you probably want 10 wraps on these fittings as the threads have a lot of clearance with the housing. Overall, great value for money. Think I will be sticking with Membrane Solutions brand from here on out. ### ⭐⭐⭐⭐⭐ Upgrading my review from 1 star to 5 star based on new information. *by D***1 on October 22, 2020* I originally gave this "DIY" RO filter and pressure vessel kit a one star rating because 99% of the water went out the waste (brine) outlet and there were only drops coming from my RO faucet. Well I didn't have everything I needed to get a usable amount of RO filtered water which would be being able to fill an eight ounce glass of water in less than a minute (vs a frikin day). With this 400GPD RO kit I was expecting to fill that glass in maybe 15 - 30 seconds based on what I have seen with a few of the full RO systems costing around $300-$400 that some of my neighbors had. After dealing with the seller's representative I would also give the seller (and his rep) a five star rating. The end result is that I am now getting the output I expected. As was my original review this new updated one is a bit 'wordy' . . . The reason I didn't get the expected output was more because of my lack of knowledge of RO systems. First of all in my defense for the scathing review and one star rating I gave I must point out that this is being marketed as a DIY kit. In my opinion it is not a DIY system - at least not a complete DIY. However it is a very good deal for a 400GPD filter kit that a Do It Yourselfer would need and want to build a complete RO system. To me a DIY product (stating "Make your own reverse osmosis water filter right now!") implies all I need to do is add these components to an existing filtered water line and feed the permeate RO filtered output to a dedicated faucet on my sink. While I didn't expect this kit to come with a RO faucet and some of the other parts I would need; I did (and still do) think this DIY kit marketed as it is should come with everything needed to put water into the RO pressure vessel and get a usable amount of RO filtered permeate water. However you need one more very critical component to get a usable amount of RO filtered water. That component is a Flow Restrictor (FR). With the Flow Restrictor you will be lucky to get even drips of RO filtered water. Without the Flow Restrictor there will be no back pressure to force water through the internal RO membrane and most if not all of the water will take the path of least resistance (practically no resistance) and go out the waste (brine) outlet of the pressure vessel. Basically this is why the container where the RO filter is placed is called a "Pressure Vessel" in the first place. Flow Restrictors (FR) are rated in what amount of restriction they place on the flow. It's not a 'one size fits all' deal. You need different sized FRs for different sized RO filters (50GPD, 75GPD, 100GPD and 400GPD etc.). Simply stated the amount of restriction needed is based on what you are putting in and and what you can except as an output. So there is a ratio if input to output. There are many more variables and it is more complicated than that but this is what it all boils down to. For most RO systems for every 3-4 gallons or raw unfiltered water you put in you get 1 gallon of RO filtered water out the permeate output. The other 2-3 gallons goes out the brine (waste) output and 'down the drain' so to speak. In the US where water is cheap and plentiful in most places some people might use the waste water output for watering the lawn, garden or taking baths or whatever other purposes. It's usually not 'bad' water coming out the waste output as the term waste implies. Also, If you don't want to have to open and close the input water line every time every time you open the faucet get some RO filtered water another component you will want is an (optional) Automatic Shut Off Valve (ASOV of ASO). If you are feeding the water into a holding tank or reservoir of some sort you would need at the least a float valve so that once the tank is full the input to the to the RO filter shuts off. This would actually be another type of ASOV. I only want RO water to drink where from what I understand a lot of people use RO water for aquariums, making maple syrup, hydroponic gardening etc. and use a more manual based system and may not use an ASOV - but I think that nearly all RO systems do and should. I did a LOT of online research before I bought any of the components to build my RO system and nowhere that I look was it pointed out that the FR is a critical component nor was a FR even mentioned. I already had a somewhat sophisticated filtration array in addition to a basic water softener for my rust colored well water with a very high amount of Totally Dissolved Solids (TDS). Bare in mind that a water softener does not remove any TDS it only exchanges the dissolved calcium and magnesium etc. solids of with sodium based dissolved solids so you still end up with about the same amount of TDS at the output as you had at the input. For washing clothes and showering the sodium based TDS was not a major concern for me but I didn't want any TDS or other crap (almost literally) in my drinking water. I should add that you DO want some calcium, magnesium and other TDS in your drinking water because your body does need some minerals. Unfortunately RO filters or 'throws out the good with the bad'. They actually make another 'filter' that adds back 'good' minerals into the RO filtered water after the RO filter. However you don't want a lot of other TDS in drinking water and some are very bad for your health. At the time I bought this 400GPD kit it did not come with a Flow Restrictor and the seller did not even sell them . . . or mention that one would be needed. In my correspondences with the seller I pointed this out. The seller contacted me after reading my review to find out what the problem was and replaced the kit at no additional charge. I have left a lot of bad and good reviews for many of my Amazon purchases I was impressed that the seller did so being for me this is not a common practice. I would rate the seller with 5 stars also. ## Frequently Bought Together - Membrane Solutions 75 GPD RO Membrane, Reverse Osmosis Membrane with Membrane Housing, Wrench, 1/4" Quick-Connect Fittings, Check Valve, Replacement for Under Sink Home Drinking RO Water Filter System - Membrane Solutions T33 Inline Water Filter, 1/4" Quick-Connect Filter Replacement Cartridge In-line Filter for Refrigerator & Ice Maker, Post-Carbon Filter for Reverse Osmosis Water System, 2-Pack - Malida 1/4 inch O.D. Length 32.8ft(10 meters) RO Water Tubing, Hose Pipe for RO Water purifiers System,+ 1/4 O.D quick connector 10pcs --- ## 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/144929098-75-gpd-ro-membrane-reverse-osmosis-membrane-with-membrane-housing](https://www.desertcart.sn/products/144929098-75-gpd-ro-membrane-reverse-osmosis-membrane-with-membrane-housing) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-01*