---
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: "$85.90"
currency: USD
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.us/products/3671861-greatwell-nsf-certified-reverse-osmosis-membrane-75-gpd-11-75
store_origin: US
region: United States of America
---

# 75 GPD water output 11.75” x 1.75” standard size 99% contaminant removal 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:** $85.90
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with the ultimate RO membrane upgrade!

## 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?** $85.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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:** Industry-standard 11.75” x 1.75” size ensures seamless replacement in most under-sink RO systems.
- • **Certified Confidence:** NSF/ANSI tested and certified for food-grade safety and superior filtration efficiency at 0.0001 micron.
- • **Powerful Performance:** Delivers up to 75 gallons of purified water daily—perfect for busy households and health-conscious pros.
- • **Support That Has Your Back:** Lifetime free tech support and warranty registration for peace of mind and hassle-free maintenance.
- • **Pure Water, Zero Compromise:** Removes up to 99% of 1,000+ contaminants including lead, chlorine, and fluoride for crystal-clear hydration.

## Overview

The iSpring Greatwell NSF Certified Reverse Osmosis Membrane (MC7) is a high-capacity, food-grade filtration component designed to fit standard under-sink RO systems. It removes up to 99% of over 1,000 contaminants including lead and chlorine, producing 75 gallons of purified water daily. Certified to NSF/ANSI standards, it features a 0.0001 micron filtration size and offers reliable, long-lasting performance backed by lifetime tech support.

## 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: Excellent product & cusotmer service. - Great product(RCC7P-AK), great cusotmer service (special thanks to Nick) for help on fixing my problem. The system runs flaw less once setup is done appropriately. Dont have to do multiple follow ups like other company cusotmer care services.
Review: Great customer service - iSpring provides a quality product, but more than that is their customer service. I had a problem (after 10 years) and Larry at iSpring helped me to work it out. Pointing out what I might need (hadn't changed filters in 10 years) and gave step by step instructions on what I needed to do. System is up and working fine! Ken

## 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 | #4,225 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #87 in Water Filtration & Softeners #99 in Water Coolers & Filters |
| Brand Name | iSpring |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,179) |
| EU Spare Part Availability Duration | 3 Years |
| External Testing Certification | ANSI |
| 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 | 0.42 Pounds |
| Manufacturer | iSpring |
| Manufacturer Part Number | MC7 |
| 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 |
| Set Name | 75 GPD |
| UPC | 662425048120 |
| Unit Count | 1.0 Count |

## Product Details

- **External Testing Certification:** ANSI
- **Item Weight:** 0.42 Pounds
- **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)

## 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

### ⭐⭐⭐⭐⭐ Excellent product & cusotmer service.
*by A***L on March 3, 2026*

Great product(RCC7P-AK), great cusotmer service (special thanks to Nick) for help on fixing my problem. The system runs flaw less once setup is done appropriately. Dont have to do multiple follow ups like other company cusotmer care services.

### ⭐⭐⭐⭐⭐ Great customer service
*by K***G on January 20, 2026*

iSpring provides a quality product, but more than that is their customer service. I had a problem (after 10 years) and Larry at iSpring helped me to work it out. Pointing out what I might need (hadn't changed filters in 10 years) and gave step by step instructions on what I needed to do. System is up and working fine! Ken

### ⭐⭐⭐⭐⭐ Thee most important to change out!
*by M***Y on December 11, 2025*

Easy install and water taste is good again…. I replaced all filters and didn’t do this one, it was not in my box-kit of replacement filters I ordered…..water didn’t taste right….I didn’t realize it’s KEY for system of purification!!!

## 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

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-27*