--- product_id: 3671861 title: "Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7" brand: "ispring" price: "₨1242" currency: SCR in_stock: true reviews_count: 13 category: "I Spring" url: https://www.desertcart.sc/products/3671861-greatwell-nsf-certified-reverse-osmosis-membrane-75-gpd-11-75 store_origin: SC region: Seychelles --- # 75 GPD water output 0.0001 micron filtration NSF/ANSI certified purity Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 **Brand:** ispring **Price:** ₨1242 **Availability:** ✅ In Stock ## Summary > 💧 Drink Smart, Live Pure — Because Your Water Deserves the Best! ## Quick Answers - **What is this?** Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 by ispring - **How much does it cost?** ₨1242 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/3671861-greatwell-nsf-certified-reverse-osmosis-membrane-75-gpd-11-75) ## Best For - ispring enthusiasts ## Why This Product - Trusted ispring brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fits Like a Glove:** Standard 11.75” x 1.75” size designed to seamlessly replace most under-sink RO membranes. - • **High Flow, Low Fuss:** Delivers up to 75 gallons of fresh, contaminant-free water daily—perfect for busy households. - • **Ultra-Pure Hydration:** Removes 99%+ of 1,000+ contaminants including lead, chlorine, and fluoride for crystal-clear water. - • **Certified Quality Assurance:** NSF/ANSI tested and certified to guarantee food-grade, high-capacity filtration performance. - • **Lifetime Support & Warranty:** Register online for peace of mind with lifetime tech support and manufacturer warranty. ## Overview The iSpring Greatwell MC7 Reverse Osmosis Membrane is a premium, NSF-certified filter that removes over 99% of contaminants including lead and chlorine. Sized at 11.75” x 1.75”, it fits most standard under-sink RO systems and produces up to 75 gallons of purified water daily. Crafted from food-grade materials with a microscopic 0.0001 micron filtration rating, it ensures top-tier water quality for health-conscious professionals. Backed by lifetime tech support and warranty registration, it’s the trusted upgrade for clean, safe drinking water. ## Description iSpring Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Water Filters - desertcart.com Review: Like drinking water from an Icelandic spring - The iSpring 6 Stage RO Water System is an exceptional product that truly delivers on its promises. This water system is designed to provide you with clean, fresh-tasting water that is free of contaminants, and it does so with ease. One great feature of this water system is its alkaline remineralization filter. This unique filter adds back beneficial minerals like calcium and magnesium to your water, which not only helps to balance its pH level but also improves its taste and overall quality. The installation process for the iSpring RCC7AK was also incredibly straightforward. You don't need any special tools or plumbing experience to get it up and running, and the included instructions are clear and easy to follow. Once installed, the system is also low maintenance, with only a few filters that need to be replaced every six to twelve months. The company also has some of the best Customer Support I've encountered for any product. Sean at iSpring truly cares and went over the top in helping solve an issue I encountered after a few years of use. Review: Easy Installation - Works Great!! - I've had my iSpring 6-Stage Alkaline RO Filter for 3 years and absolutely LOVE it. After 3 years of use, you need to change the RO membrane filter. I wanted to make sure I ordered the right one, so I called their customer support and spoke with Don. No waiting. No phone menu of options to choose from. He just answered my call immediately and told me which filter to order, gave me tips on how to change it, and offered to send additional fittings in case I needed them. I wasn't concerned because I've always had my plumber change my filters, and it has always been easy. But after reading some of the more recent online reviews, I thought my plumber might have problems. So I called iSpring a second time and spoke with Nick -- again no wading through a phone menu before talking to a live person. Nick gave me more information and said they could expedite the additional fittings in case I needed them. This time I said yes. As it turned out, the filter change went as smoothly as the previous ones, but I appreciated the extra fittings and extra support from iSpring staff. And I really appreciate how support is such a quick phone call away. Thanks much, Don and Nick. I'm enjoying my clean water and the money I save from not buying bottled. ## Features - Enjoy Your Water with Confidence: Our Reverse Osmosis membrane is able to remove up to 99% of over 1,000 contaminants from your water, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium and more. - Top-notch Quality - Tested by independent third-party to meet NSF/ANSI Standards, our Reverse Osmosis Membrane is made of food-grade high capacity material that provides high packing density to remove contaminants. With the 0.0001 micron size, it only allows water molecules to squeeze through and virtually nothing else. TDS rejection rate up to 97% (under NSF58 testing condition). - Standard Size - With 11.75" X 1.75" industry-standard size, our membrane fits most standard under sink RO membrane housings. It has the capability of producing 75 gallons of water per day, ensuring that families of nearly any size will have plenty of clean drinking water available on demand. - Peace of Mind Customer Service - Register online to activate your manufacturer warranty and life-time free tech support. We stand behind our products and if you encounter any problems with any of our products please reach out to us immediately. We are happy to help! - Please note - The membrane normally lasts about 2-3 years depending on your source water quality. If your water is very hard (Total Dissolved Solids level above 750 ppm), please contact us for customized solutions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007TBB69W | | Best Sellers Rank | #3,788 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #77 in Water Filtration & Softeners #93 in Water Coolers & Filters | | Brand | iSpring | | Brand Name | iSpring | | Customer Reviews | 4.7 out of 5 stars 2,213 Reviews | | EU Spare Part Availability Duration | 3 years | | External Testing Certification | NSF | | Global Trade Identification Number | 00662425048120 | | Included Components | RO membrane | | Item Dimensions D x W x H | 1.75"D x 1.75"W x 11.75"H | | Item Type Name | , 75 GPD, 11.75” X 1.75” | | Item Weight | 6.72 ounces | | Manufacturer | iSpring | | Manufacturer Part Number | MC7 | | Material | Polypropylene (PP) | | Material Type | Polypropylene (PP) | | Model Number | MC7 | | Number of Items | 1 | | Product Benefits | Removes up to 99% of over 1,000 contaminants including lead, chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more Product Benefits Removes up to 99% of over 1,000 contaminants including lead, chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more See more | | Product Dimensions | 1.75"D x 1.75"W x 11.75"H | | Set Name | 75 GPD | | UPC | 662425048120 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 6.72 ounces - **Material:** Polypropylene (PP) - **Product Dimensions:** 1.75"D x 1.75"W x 11.75"H ## Images ![Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Image 1](https://m.media-amazon.com/images/I/51RuKzOQtyL.jpg) ![Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Image 2](https://m.media-amazon.com/images/I/71KNGoMEoxL.jpg) ![Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Image 3](https://m.media-amazon.com/images/I/71E4eODT7FL.jpg) ![Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Image 4](https://m.media-amazon.com/images/I/71aaSDbfhbL.jpg) ![Greatwell NSF Certified Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - Image 5](https://m.media-amazon.com/images/I/71WM5TRcsUL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is the difference between the mc7 and mc1? i have an rcc7 unit that i purchased 2 years ago** A: Hi Gregory, the the difference between the two membranes is the gallons per day produced; the MC1 will fill the ro storage tank a just a couple minutes quicker than the MC7. Either membrane is compatible with the RCC7. **Q: When should this be changed?** A: It should last 2 to 3 years. However, I use a TDS meter to monitor pollutant levels. The water in Alpine, TX is not very good according to the TDS readings. I change my RO membrane twice a year and the other filters about every 3 months. I am probably a bit of a fanatic though. Check out 123filter.com for filter information. I stopped buying from Amazon because I got a better price and their customer service is awesome. Amazon customer service is excellent but 123filter is in the RO business. Very helpful for problem solving. **Q: Are there any specific instructions? Do you have to run water through it awhile before using?** A: There will be specific instructions but in any case it is always a good idea to flush the system few a few minutes before using. The important thing is to keep the membrane wet. Tech support at isptings is awesome too. **Q: Will this fit ispring rcc7ak?** A: Hi Elizabeth, Thank you for your question. Yes, this is the membrane filter used in the system rcc7ak. Thanks, iSpring Water Systems ## Customer Reviews ### ⭐⭐⭐⭐⭐ Like drinking water from an Icelandic spring *by S***S on May 13, 2023* The iSpring 6 Stage RO Water System is an exceptional product that truly delivers on its promises. This water system is designed to provide you with clean, fresh-tasting water that is free of contaminants, and it does so with ease. One great feature of this water system is its alkaline remineralization filter. This unique filter adds back beneficial minerals like calcium and magnesium to your water, which not only helps to balance its pH level but also improves its taste and overall quality. The installation process for the iSpring RCC7AK was also incredibly straightforward. You don't need any special tools or plumbing experience to get it up and running, and the included instructions are clear and easy to follow. Once installed, the system is also low maintenance, with only a few filters that need to be replaced every six to twelve months. The company also has some of the best Customer Support I've encountered for any product. Sean at iSpring truly cares and went over the top in helping solve an issue I encountered after a few years of use. ### ⭐⭐⭐⭐⭐ Easy Installation - Works Great!! *by S***. on October 5, 2020* I've had my iSpring 6-Stage Alkaline RO Filter for 3 years and absolutely LOVE it. After 3 years of use, you need to change the RO membrane filter. I wanted to make sure I ordered the right one, so I called their customer support and spoke with Don. No waiting. No phone menu of options to choose from. He just answered my call immediately and told me which filter to order, gave me tips on how to change it, and offered to send additional fittings in case I needed them. I wasn't concerned because I've always had my plumber change my filters, and it has always been easy. But after reading some of the more recent online reviews, I thought my plumber might have problems. So I called iSpring a second time and spoke with Nick -- again no wading through a phone menu before talking to a live person. Nick gave me more information and said they could expedite the additional fittings in case I needed them. This time I said yes. As it turned out, the filter change went as smoothly as the previous ones, but I appreciated the extra fittings and extra support from iSpring staff. And I really appreciate how support is such a quick phone call away. Thanks much, Don and Nick. I'm enjoying my clean water and the money I save from not buying bottled. ### ⭐⭐⭐⭐⭐ I Love my iSprings filtration system *by J***R on March 3, 2023* I've had my 5 stage iSprings system for about 5 years. It gives me better than bottled water quality but since I fill a stainless steel container, it avoids about 10-12 plastic bottles every day (YES, I drink a lot of water). It's very important to change out the filters periodically. I was very good and did it at 1 year, then it slipped to maybe 18 months. I was on my 4th filter change-out. The RO cartridge and other early stage filters have always been easy and never a problem. However, for this event, I could not get the 5th stage final filter to stop dripping. I went on the Amazon order page and selected "contact seller". A nice person named Sean reached out to me. Buying things unseen always presents a risk but not with iSprings. Sean informed me of his immediate actions to send me replacement parts but also took the rare step of conveying a feeling that no matter what happened from this point forward, he was taking ownership of my success in getting the filter back on- line. The replacement parts arrived and also leaked but Sean sent a third set of failed parts and a bit of hose. That did the trick. I think possibly my old tubing had gotten brittle such that it was preventing a good seal with the o-rings. Maybe I hadn't pushed it far enough into the fitting or maybe it kinked. for some reason it wasn't making a good seal. Each time I pulled out a failed connection, I could feel new imperfections on the outside of the tubing. I cut it off each time between repeat attempts. I didn't not pull out the new successful tubing to see if it has this same phenomenon. The only downside of this or any other under-sink system is that is takes up space and that involved some negotiation with my wife so as to not have supplies piled up around the filter unit. Anyway- if you are deliberating an under- sink filtration system, I highly recommend the iSprings system. It has everything a person needs to drink cool clear water. It is easy to maintain. If you have some problem, iSprings will jump in the foxhole with you to fight whatever you may be battling. ## Frequently Bought Together - iSpring Greatwell Reverse Osmosis Membrane 75 GPD 11.75” X 1.75”, Replacement Fits Standard Under Sink RO Drinking Water Filtration System, MC7 - iSpring F7-GAC NSF Certified 1-Year Replacement Filter Cartridge Pack, 7-Count for Standard 5-Stage Reverse Osmosis (RO) Systems - iSpring FA15 Alkaline Inline Water Filter Cartridge, 10” x 2” with 1/4” Quick Connect, NSF Certified, Add-on for RO Systems, Balances pH & Restores Minerals, 3-Layer Replacement Filter --- ## 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.sc/products/3671861-greatwell-nsf-certified-reverse-osmosis-membrane-75-gpd-11-75](https://www.desertcart.sc/products/3671861-greatwell-nsf-certified-reverse-osmosis-membrane-75-gpd-11-75) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-09-02*