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iSpring MC4 2.8" x 12" 400GPD Water Filter Replacement Cartridge Reverse Osmosis Membrane, fits RE4T (MC4)
400GPD Commercial Reverse Osmosis Membrane with Matching Housing
TFC (Thin Film Composite) membrane
Rejects wide spectrum of impurities down to .0001 micron
iSpring MS10 RO Membrane Replacement for RCS10T, 1000 GPD Reverse Osmosis Membrane (MS10)
1000 GPD High-Flow RO Membrane: Designed for RCS10T tankless RO systems, the MS10 reverse osmosis membrane delivers up to 1000 gallons per day, supporting high-demand residential and light commercial applications with fast, stable water output.
Up to 99% TDS Reduction: This high-performance 0.0001-micron RO membrane reduces up to 99% of common dissolved contaminants, including lead, chlorine, PFAS, fluoride, arsenic, asbestos, calcium, sodium, and other impurities, delivering clean, great-tasting water.
Efficient 2.5:1 Pure to Drain Ratio: Compared to traditional RO systems with a 1:2 drain ratio, the 2.5:1 pure-to-drain ratio saves up to 80% more water, significantly reducing wastewater while lowering long-term water costs and reducing environmental impact.
Long Service Life: The MS10 RO membrane offers a service life of up to 36 months, depending on source water quality and usage, reducing maintenance frequency and replacement costs.
Easy Installation: Fits perfectly with quick-connect tubing for straightforward installation and secure, reducing leak-free operation.
Greatwell MC2 Reverse Osmosis Membrane 200 GPD 11.75” X 2'”', Replacement Fits Standard Under Sink RO Drinking Water Filtration System (MC2)
High-Capacity Filtration for Modern Homes – The MC2 RO Membrane produces up to 200 gallons of purified water per day, delivering a consistent flow of clean, refreshing water for families, offices, and small businesses that demand reliable, high-volume filtration.
Exceptional Filtration Performance – Effectively removes up to 99% of over 1,000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. The 0.0001-micron precision layer allows only water molecules to pass through while blocking harmful impurities.
Premium Materials & Long-Lasting Design – Constructed from food-grade, high-capacity film, the MC2 reverse osmosis water filter delivers excellent packing density, durability, and stable filtration performance. Each membrane is vacuum-sealed to ensure freshness, hygiene, and long-term preservation — keeping your filtration system safe and ready for optimal performance right out of the box.
Universal Fit & Easy Installation – Measuring 11.75” x 2”, this industry-standard RO membrane filter replacement fits most under-sink reverse osmosis systems, making replacement quick and effortless without any special tools or adapters required.
Reliable Support & Peace of Mind – iSpring provides lifetime technical support for all Greatwell membranes. Our U.S.-based service team is ready to help you maintain optimal system performance with confidence.
Please note - There are wet & dry membranes in the market and the ones we sell are the dry version. Comparing to the wet version, the dry ones can be stored longer, are easier to preserve, and don't contain preservation solution that needs to be washed off before usage. The RO membrane filter 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.
iSpring RO1000 Full Replacement Set, Includes 3x FCF1000,1x MC1000 RO Membrane, 3x FPC1000, Lasts 2.5-3 Years Based on Use & Water Quality, Fits RO1000-BN/RO1000-ORB Tankless RO Systems (F7-RO1000)
F7RO1000 Complete Replacement Set for RO1000: This replacement filter pack includes 3x FCF1000 composite filters, 1x MC1000 RO membrane, and 3x FPC1000 carbon filters — engineered to work seamlessly with iSpring RO1000-BN/RO1000-ORB 1000 GPD tankless reverse osmosis systems
High-Efficiency & Long-Lasting: Each FCF1000 and FPC1000 filter lasts 10-12 months under normal use, while the MC1000 membrane provides powerful performance for 30-36 months.This kit can last 2.5-3 years, depending on your incoming water quality and water usage, ensuring your home or business has clean, great-tasting water for the long term
Advanced 3-Stage Filtration: The FCF1000 filter reduces sediment, rust, and chlorine, while the FPC1000 filters further enhance the quality and taste of the drinking water. The MC1000 RO reverse osmosis membrane features a 0.0001 micron filter that effectively removes lead, PFAS, chlorine, fluoride, arsenic, hormones, asbestos, calcium, sodium, and a variety of other contaminants
Easy Maintenance, Tool-Free Replacement: The twist-and-lock filter design enables quick and simple replacement without shutting off the water supply. Enjoy hassle-free filter changes and maintain optimal performance with minimal effort
Fast and Effective Water Filtration: The iSpring RO1000 reverse osmosis water filtration system produces up to 1000 gallons of filtered water daily. With an impressive flow rate of up to 0.7 gallons per minute, it is the perfect choice for various settings such as schools, offices, small businesses, and homes. Experience swift and dependable water filtration that meets your needs with ease
iSpring NS23 Stainless Steel Reverse Osmosis Membrane Housing with Cap for CRO1000 & CRO2000 (NS23)
Commercial Stainless Steel RO Membrane Pressure Vessel Housing:
Designed to fit CRO1000 and CRO2000 filtration replacement cartridges, providing a durable and reliable housing solution.
First-Class Sealing with Double O-Ring Design:
The NS23 RO membrane housing features end port caps with a double O-ring design, ensuring exceptional sealing and leak prevention.
High Pressure Tolerance:
Engineered to withstand a maximum working pressure of up to 250 psi, making it suitable for demanding applications.
Versatile Port Configuration:
Equipped with 3/4" feed and drain ports (FNPT) and 1/2" permeate ports (FNPT) for versatile installation options.
Comprehensive Package:
Includes stainless steel housing, housing caps, O-rings, metal brackets, and hardware. (Note: RO membrane not included.)
iSpring Greatwell MC150 RO Membrane Reverse Osmosis Replacement water Filter for RCC1D & RCC1DP RODI Water Filtration System, 150 GPD (MC150)
Dedicated RO membrane for iSpring RCC1D & RCC1DP RODI reverse osmosis system. Replace every 2-3 years for optimal performance
Removes up to 99% of over 1,000 contaminants, including lead (up to 98%), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more
Ensures a rapid flow rate of up to 0.1 GPM, providing high-efficiency filtered water for demanding applications without compromise
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
iSpring MS5-N 500GPD Reverse Osmosis (RO) Membrane Replacement 3.0" x 11.7", Fits RCS5T, Updated Version (MS5-N)
500GPD membrane saves 60% of water, with 1:1 drain to clean water ratio
Low-pressure and high-capacity membrane for tankless direct ro output
Fits updated iSpring light commercial RO system RCS5T
Rejects wide spectrum of impurities down to .0001 micron
Tolerance to a wide range of operating conditions
iSpring PMP1000 Water Booster Pump for High Capacity RO Membrane and Commercial Reverse Osmosis System Up to 120 psi, 3/8” Quick Connect Fitting (PMP1000)
PMP1000 is designed to boost water pressure up to 120 psi. Optimizes water filtration performance on high capacity reverse osmosis membrane and commercial ro systems
Great option for iSpring CRO1000 and systems with low feed water pressure
Automatic turns on and off with water system
Minimum working pressure: 30psi. Maximum working pressure: 120psi; Temperature Range: 40°-100°F
Package includes: PMP1000, power supply, 10ft 3/8” tubing, and spare fittings
Filmtec MC1US TW30-1812-100 100GPD Reverse Osmosis RO membrane filter cartridge (MC1US)
100 gallon per day
Fits iSpring RO systems
iSpring MCRO1000 RO Membrane Replacement Filter for Tankless Commercial Reverse Osmosis Water Filtration System CRO1000, 1000 GPD (MCRO1000)
Dedicated RO membrane for iSpring tankless RO water filter system CRO1000, which is not only a great choice for residential drinking water treatment, but also suitable for drinking water filtration in offices, labs, and small businesses like restaurants, coffee shops, teashops, breweries, bars, salons, spas, clinics and more.
MCRO1000 removes up to 99% of over 1, 000 contaminants, including lead (up to 98%), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. This core of CRO1000 beats contaminants and provides you with clean water up to 1,000 gallons per day.
Inlet Water Pressure Range: 80 - 130 psi. Up to an exceptional 1.5:1 pure to drain water ratio, improving efficiency and saving water bill costs.
Quick and easy filter change. Depending on your water usage and the quality of your source water, please replace this RO membrane every 2-3 years to ensure optimal performance.
Peace-of-mind after-sale support is backed by a 30-day money-back guarantee, manufacturer warranty, and lifetime free tech and customer support in Atlanta, GA. Register online to activate your warranty. We stand behind our products. Please feel free to reach out to us for questions and assistance. Your satisfaction is our top priority!
iSpring MC600 RO Membrane Replacement Filter for Tankless Countertop Reverse Osmosis Water Filtration System RCT600, 600 GPD (MC600)
Dedicated RO membrane for iSpring countertop RO water filter system RCT600. Experience clean and fresh water every time you turn on your drinking water faucet.
This core of RCT600 is rated at 600 gallons per day. With up to 1.5:1 pure water to wastewater ratio, RCT600 is much more efficient than a traditional RO membrane.
MC600 removes up to 99% of over 1, 000 contaminants, including lead (up to 98%), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. Enjoy your water with confidence.
Quick and easy filter change. Depending on your water usage and the quality of your source water, please replace this RO membrane every 2-3 years to ensure optimal performance.
Peace-of-mind after-sale support is backed by a 30-day money-back guarantee, manufacturer warranty, and lifetime free tech and customer support in Atlanta, GA. Register online to activate your warranty. We stand behind our products. Please feel free to reach out to us for questions and assistance. Your satisfaction is our top priority!
iSpring AWR5N1 Multi-functional Water Filter Housing Wrench - For RO Membrane & Pre-filter Housings, 2712 Membrane Housings, ¼” Nuts (AWR5N1)
One Wrench for 5 Usages: The wrench can be used for reverse osmosis membrane housings, standard 10” RO pre-filter housings, 2712 membrane housings, ¼” nuts, and releasing the lock of quick fittings.
The wrench is made of solid plastic and contains 4 - 6 teeth that enable a firm grab.
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 wrench does not fit whole house water filter housings. If you need a wrench for whole house housings, please consider iSpring AWR3 filter housing wrench.
iSpring NS15 Reverse Osmosis Membrane Housing, Fits RCS5T, Comes with 4046K-O x1 & 4044K-O x2 (NS15)
10" White RO membrane housing.
Fits iSpring RCS5T.
Comes with 4046K-O x1 & 4044K-O x2.
iSpring FUF1 Ultra Filtration UF Membrane, Fits CU-A4 (FUF1)
UF membrane: 0.1 micron
Unique swivel-valve, push-button assembly allows for DIY replacement installation
Capable to work at low water pressure
Individually wrapped
iSpring ORM O-Ring for Reverse Osmosis Membrane Housing (ORM)
The O-ring is installed on both the lip of the RO membrane housing and inside the housing cap.
iSpring F6CTO Prefilters for CW31 and Standard Reverse Osmosis RO Water Filter Systems 1-Year Replacement Supply Filter Cartridge Pack Set, No Membrane (F6CTO)
1-year supply of replacement filters for 3-Stage water system CW31 and other 10 inch standard water systems Individually wrapped Standard sized 10" x 2.5" Fits filtration systems that use standard sized filter housings Includes 2 pieces of 5 micron sediment filters #FP15 and 4 pieces of 5 Micron CTO Carbon Filters #FC15
Greatwell MC1 Reverse Osmosis (RO) Membrane Replacement 100 GPD, 11.75” X 1.75" (MC1)
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.
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 100 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: There are wet & dry membranes in the market and the ones we sell are the dry version. Comparing to the wet version, the dry ones can be stored longer, are easier to preserve (no need of vacuum sealing), and don't contain preservation solution that needs to be washed off before usage. 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.
Greatwell MC5 Reverse Osmosis (RO) Membrane Replacement 50 GPD, 11.75” X 1.75” (MC5)
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.
Tested by independent third-party to meet NSF/ANSI Standards, our Reverse Osmosis Membrane is made of food-grade material. 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 50 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 extended 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 - There are wet & dry membranes in the market and the ones we sell are the dry version. Comparing to the wet version, the dry ones can be stored longer, are easier to preserve (no need of vacuum sealing), and don't contain preservation solution that needs to be washed off before usage. 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.
iSpring NW12 Reverse Osmosis Membrane Housing, White (NW12)
10" White housing
Made of Polypropylene
Has a straight inlet and 2 right-angled outlets 1/4" in and 1/4" out
Fits most standard residential membrane housings
Including quick fitting accessory pack. Please note: Set A (0404SEX2 ACS1K) will be prioritized for delivery. If Set A is unavailable, Set B (0404SE ACV1K) will be shipped as a substitute. Both sets offer the same functionality and performance.