iSpring
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LittleWell 0404UMJX2 (M22X2) 1/4" MNPT x 1/4" MNPT Straight Connector, Pack of 2 (0404UMJX2 (M22X2))
Suitable for use with Pex, CPVC, and Copper pipe.
Lead Free and Non Toxic.
1/4" x 1/4" M NPT.
LittleWell 0402MEX2 (4042KX2) 1/8" NPT 1/4" Quick Connect Fitting Male Elbow, 0402MEX2 4042KX2, 2 Pack (0402MEX2 (4042KX2))
The 90-degree male elbow angle allows for tight fits on the membrane housing. The 1/4" quick connect fitting fits standard 1/4" tubing used on most RO systems. The 1/8" threaded end connects directly to most membrane housings.
LittleWell 0404MEX2 (4044KX2) Male Elbow, 1/4" in NPT to 1/4" Quick Connect, 0404MEX2 4044KX2, Pack of 2 (0404MEX2 (4044KX2))
Male Elbow, quick connect fitting.
Tube OD 1/4".
Male NPT thread 1/4".
iSpring ACV4 Check Valve for Reverse Osmosis Water Filter (ACV4)
Quick connect Union check valve features 1/4 inch quick connect fitting with plastic insert check vale
To be installed on the outlet port of membrane housing where pure water exits
Compatible with most reverse osmosis systems (including brand names) in the market
Prevents the flow of water back in to the ro membrane
Max. Operating Pressure: 90 psi
iSpring ALC1 Quick-Fitting Lock Clip 10-Pack (ALC1)
Used for locking the release sleeve of Quick-Fitting
Fits 1/4" quick fitting;
iSpring APR70 Reverse Osmosis Pressure Regulator APR70 70 psi White RO Accessory (APR70)
Designed to be used in installations with high feed pressure 1/4" push-in quick fittings for DIY installation Water Flow Rate: 4 gallons per minute (15L/min) at 100 PSI
iSpring ALS1 Leak Detector and Shut-Off Valve for Reverse Osmosis and Under Sink Water Filtration Systems - 1/4” Quick Connect (ALS1)
The shut-off valve protects your home and business properties from costly water damage by automatically shut off the incoming water supply once the pad detects a potential water leakage
Just take out the screw and twist the unit to open for pad replacement. The pad needs to be replaced every time it touches the water and expands
1/4” quick connect: Fits ¼” tubings
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!
Work with iSpring ALS1P3 replacement pads
iSpring FP11X25 1 Micron Box of 25 10"x2.5" Standard Sediment Water Filter Replacement Cartridges, 25-Pack (FP11X25)
Multi-layer gradient design 2.5 inch (O.D) x 10 inch (Length) x 1 1/8 inch (I.D), Fits industry standard 10 inch filter housings Good for RO, Counter-top, Whole-house water filters and ice machine, film, beverage processing Genuine filter cartridge supply. This filter can also be used for pool and hottub.
iSpring FP15X25 5 Micron Box of 25 10"x2.5" Standard Sediment Water Filter Replacement Cartridge, 25-Pack (FP15X25)
Made of 100% Melt-Blown Polypropylene, multi-layer filtration. This filter can also be used for pool and hottub. Diameter 2.5" x 10" Length 5 Micron - 25 filters included Fits 10" filter housings Tested by independent third-party to meet NSF/ANSI standard
iSpring FT15INRF Universal Refrigerator Water Filter, Fridge Top Water Filter, 1-Stage (FT15INRF)
Removes sediment, chlorine, lead, mercury and other contaminants
Larger capacity than the small ordinary refrigerator filter
Push-to-connect quick fittings
The upgraded post-filters come with quick connections and fittings. Please attach the included fittings to the filters and connect the tubings to the fittings. You may discard the old compression fittings.
iSpring WGB31B-KSNC Whole House Water Filter System, SGS-Tested to Remove up to 94.4% of Chloramine, 3-Stage Filtration Reduces Heavy Metals, Lead, Chlorine, Sediment, VOC, 10" x 4.5" Filters, 1” Inlet/Outlet (WGB31B-KSNC)
Reliable 3-Stage Whole House Filtration: The whole house water filter system WGB31B-KSNC features a robust 3-stage setup including a 10” polypropylene sediment filter, a GAC + KDF media filter that targets lead, mercury, hydrogen sulfide, pesticides, and other common contaminants, and an advanced FC15B-NC catalytic carbon block that reduces chloramine, chlorine, VOCs, and unpleasant odors—providing cleaner, better-tasting water across your entire home.
Powerful Heavy Metal Reduction: The FG15B-KS water filter in the second stage uses a GAC + KDF media to reduce lead, mercury, hydrogen sulfide, pesticides, herbicides, and other common contaminants found in both city and well water.
Advanced Catalytic Carbon Chloramine Removal: The third-stage FC15B-NC filter uses premium catalytic carbon to efficiently reduce chloramine, chlorine, VOCs, and unpleasant tastes & odors. Independently tested by SGS, the filter achieved up to 94.4% chloramine removal according to NSF/ANSI 42 standards, providing cleaner and safer water for your entire home.
Compact Yet Powerful: Ideal for apartments, smaller homes, or vacation properties, this 10" x 4.5" whole house water filter fits tight spaces while delivering long-lasting, high-performance filtration.
DIY-Friendly Setup: The WGB31B-KSNC whole house water filtration system uses 1" NPT connections and standard 10" x 4.5" cartridges for DIY-simple installation with the help of our detailed manual and YouTube tutorials. It delivers strong water flow (up to 15 GPM) and offers low maintenance.
Built to Last: Designed for durability, this whole house water filter system delivers reliable performance for up to 50,000 gallons or 12 months, depending on water usage and quality. It is a long-lasting solution for those seeking a dependable whole home water filtration system.
Peace of Mind Guaranteed: Supported by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. Whether you're purchasing your first whole house water filtration system or replacing your current home water filter, we're here to help—before and after your purchase.
Please Note: This water filter system retains healthy minerals and does not reduce TDS. For dissolved solids removal, explore our iSpring Reverse Osmosis systems—perfect complements to any water filtration system for house or whole home water filtration setup.
iSpring RCC7, NSF Certified, High Capacity Under Sink 5-Stage Reverse Osmosis Water Filter, RO Drinking System, 75 GPD, Brushed Nickel Faucet (RCC7)
[Effectively Remove Contaminants] This iSpring RO system is designed to produce great-tasting water that is clean, pure, and healthy for drinking. It uses a 5-stage filtration process that removes up to 99% of over 1,000 harmful contaminants, including PFAS, chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium, and more. The under sink water filter system also reduces the TDS rate by 80% to 90% or better, making it ideal for drinking. Additionally, it removes hard water minerals like calcium, and magnesium that leave white residue or scale.
[Certified to NSF/ANSI 58] The iSpring reverse osmosis water filter is produced in strict accordance with American quality standards. Certified to NSF/ANSI 58 and has been dedicated to providing unlimited clean, refreshing, and crisp-tasting water superior to bottled water for American families for more than 15 years.
[Low Maintenance and Leak-free Design] Quality components ensure reliability and low maintenance for many years to come. Clear see-through 1st stage housing makes filter inspection a snap. The system is compact and can fit under most kitchen sinks. It doesn't require any power source and comes with a check valve to prevent the backflow of water into the membrane housing, ensuring safety and avoiding water leakage. With a tank, it can meet the needs of big families or offices. The first filter housing is made of AS material (impact strength), allowing you to see the condition of the filter element without removing the casing and ensuring you always enjoy the best quality of water.
[High Quality Design and Great Taste] The high-quality iSpring reverse osmosis system under sink helps you experience clean, safe, and good-tasting water every time you turn on the faucet. The system comes with a 100% lead-free designer faucet and certified food-grade tubing, allowing you to enjoy crystal clear ice cubes, fresher tea and coffee, better-tasting foods, and healthier baby formula. The reverse osmosis water system removes contaminants down to 0.0001 microns, and the fine GAC filter provides final polishing to the purified water.
[100% Satisfied Customers] RCC7 from America’s favorite brand of under sink water filter is the highly rated reverse osmosis system. Comes with 1-year limited manufacturer warranty upon registration and lifetime personalized support from GA, USA, combined with premium quality components, this water filter is to deliver endless bottled quality drinking water right in your home for many years to come, eliminating plastic waste.
Our NSF Certification validates the entire filtration system's performance, setting us apart from competitors that certify only components or materials.
iSpring FP15B Sediment Filter Replacement Cartridge for Whole House Water Filtration Systems, High Capacity 5-Micron Premium PP, 4.5" x 10" (FP15B)
A combination of a sparse layer, compaction
layer, and precision layer ensures this iSpring 5-micron
polypropylene sediment filter captures dirt, sand, silt, dust, rust,
and scale particles effectively. This filter can also be used for pool and hottub.
Filters up to 15,000 gallons depending on the
use and feed water quality. Replace the filter every 3-6 months to
achieve ideal performance.
Combining with other filters such as CTO
filter(FC15B), iSpring fine PP sediment filter not only brings clean
and refreshing water to every faucet in your home but also helps to
prolong the lives of your appliances and protects plumbing from
sediment and scale buildup.
Official 1-stage sediment filter for iSpring
whole house water filtration system WGB21B. Fits standard 10" x 4.5"
whole house water filtration systems. Individually sealed for
freshness.
Your worry-free shopping experience is
backed by a 30-day money-back guarantee and lifetime tech support from
iSpring in Atlanta, GA at (678) 261-7611.
iSpring FC15B 5-Micron Coconut Shell Activated CTO Carbon Block Water Filter Replacement Cartridge for Under Sink and Whole House Water Systems (FC15B)
Using quality coconut shell carbon and highly compact fabrication tech, this activated carbon block CTO(Chlorine, Taste, and Odor) filter cartridge is designed and produced to achieve filtration efficiency and long filter life for 10" Whole House and Undersink Water Filtration Systems. Free of surfactants, binders, and adhesives. No leaching carbon ash.
Knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is effective on herbicides and industrial solvents and other contaminants like trihalomethanes. Steady flow and high absorption.
Filters up to 50,000 gallons depending on the use and feed water quality. Replace the filter every 6 months or every 50,000 gallons of water for ideal performance, depending on the quality of source water and daily water consumption.
Fits standard 10"x4.5" whole house and undersink water filtration systems. Official 2nd stage Carbon Block replacement filter cartridge for iSpring Under Sink Water Filtration System US21B as well as Whole House Water Filtration System WGB21B; 1st stage replacement filter cartridge for WGB21BM and WGB21B-PB. Individually sealed for freshness.
Your worry-free shopping experience is backed by a 30-day money-back guarantee, extended warranty upon registration, and lifetime tech support from iSpring in Atlanta, GA at (678) 261-7611.
iSpring WGB21B-KSNC Whole House Water Filter System, SGS-Tested to Remove up to 94.4% of Chloramine, 5-Layer Filtration Reduces Heavy Metals, Lead, Chlorine, Sediment, VOC, 10” x 4.5” Filters (WGB21B-KSNC)
Premium Whole House Filtration System: The whole house water filter system delivers powerful whole-home protection. The 1st stage FG15KS features a GAC + KDF heavy metal removal filter that targets lead, mercury, hydrogen sulfide, pesticides, herbicides, and other chemical contaminants. The 2nd stage FC15B-NC uses an advanced catalytic carbon filter engineered for strong chloramine and chlorine reduction, and improved taste and odor. They form a high-efficiency whole house water filtration system that provides cleaner, fresher water from every tap—an ideal water filter whole house solution for both municipal and well water.
High Flow, Compact Design: Built With 1" inlet/outlet ports, this whole house water filter system delivers strong water flow up to 15 GPM. The compact 10” x 4.5” size fits tight spaces, making it ideal for condos, apartments, and small homes needing a space-saving whole house water filtration system. It provides reliable performance for anyone seeking an efficient water filter whole house or home water filter system whole house solution without sacrificing flow.
Built to Last – Durable Whole House Protection: Engineered for long-term reliability, this whole house water filter system features reinforced housings, leak-resistant construction, and premium filtration media. Designed for up to 50,000 gallons of use, it provides dependable whole home water filtration for heavy metal reduction, chloramine reduction, and both well-water and municipal water applications—an ideal, long-lasting whole house water filtration system for your home.
DIY & Easy Installation: The WGB31B-KSNC whole house water filtration system uses 1” NPT connections and standard 10” x 4.5” cartridges for DIY-simple installation with the help of our detailed manual and YouTube tutorials. It delivers strong water flow (up to 15 GPM) and offers low maintenance.
Peace of Mind Guaranteed: This Chloramine whole home water filtration system is backed by a 1-year warranty and lifetime U.S.-based technical support, and it keeps healthy minerals without reducing TDS—so for dissolved solids removal, simply pair this water filtration system for house with an iSpring Reverse Osmosis system.
Please Note: This water filter system retains healthy minerals and does not reduce TDS. For dissolved solids removal, explore our iSpring Reverse Osmosis systems—perfect complements to any water filtration system for house or whole home water filtration setup.
Greatwell MC7 NSF/ANSI 58 Certified Reverse Osmosis (RO) Membrane Replacement 75 GPD, 11.75” X 1.75” (MC7)
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 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 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.
NSF/ANSI 58 Certified: Independently tested and certified to meet NSF/ANSI 58 standards, ensuring reliable removal of harmful contaminants for safe, high-quality drinking water.
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 US31+F3+ICEK 3-Stage Under-Sink Drinking Water System, Removes Sediment, Chlorine, Cloudiness, Taste, and Odor, w/ F3 Filter Replacement Pack and Ice Maker Kit (US31+F3+ICEK)
Comprehensive Filtration: Three-stage system with PP , granular activated carbon, and carbon block filters removes sediment, chlorine, cloudiness, and unpleasant taste and odor while retaining healthy minerals.
Consistent Flow and Capacity: Provides up to 1 gallon per minute of on-demand flow depending on water pressure, ideal for filling bottles, cooking, and family drinking needs.
NSF Certified Materials and Safety: Uses high-quality coconut shell carbon and BPA-free components tested against NSF/ANSI 42, 53, and 61 standards for water quality and material safety.
Easy Installation and Maintenance: Includes housing wrenches, tubings, mounting bracket, and brushed nickel faucet. The clear first-stage housing allows for quick visual inspection, and filters typically last up to 12 months, depending on water quality.
F3 Replacement Pack: Includes three individually sealed cartridges: PP, granular activated carbon, and carbon block. Designed to effectively reduce chlorine and sediment and keep water tasting fresh.
Ice Maker Kit: Connects the filtered water line directly to your refrigerator or ice maker for crystal-clear ice and fresher-tasting beverages, ensuring pure water throughout your kitchen.