iSpring
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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".
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 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 0404MRTX2 (7544KX2) 1/4" Quick Fitting to 1/4" Quickfitting to 1/4" MNPT TEE Fitting, 0404MRTX2 7544KX2, Pack of 2 (0404MRTX2 (7544KX2))
1/4" OD x 1/4" OD x 1/4" NPT 2 fittings included.
iSpring CU-A4 0.01μm Ultra-Filtration Under Sink Water Filter System, Tankless 4-Stage High Capacity, Remove 99.99% Contaminants, Quick Filter Change with Brushed Nickel Faucet, White (CU-A4)
SUPERIOR PERFORMANCE: The advance 4-stage design, which includes both Ultrafiltration and KDF/GAC stages, removes up to 99% of PFAS, chlorine and chlorine treatment by-products, lead, arsenic, and much more, while retaining minerals. Noted: This system is NOT a Reverse Osmosis water filtration system and does NOT lower TDS.
4-Stage ULTRA FILTRATION SYSTEM: PP Sediment Filter ((5 microns) removes larger particles like rust, sand, dirt. ) Ultra Filtration Filter (contains hollow fiber membrane technology with a pore size of just 0.01 microns. ) KDF and GAC Filter (provides much better control of particularly problematic contaminants including chloramine, hydrogen sulfide, heavy metals, and other compounds). Fine Activated Carbon Filter (provides final polishing).
SIMPLE AND FLEXIBLE: NO WASTE WATER and No storage water tank required. The CU-A4 provides highly effective water filtration for any number of clean water needs - at the sink, in the refrigerator, for coffee makers and more.
FEATURES: Come with premium brushed nickel finish drinking water faucet. All filters, tubing and other water-contacting parts are manufactured to comply strictly with NSF/ANSI standards for safety and water quality.
EASY-TO-INSTALL AND REPLACE FILTER: Push to connect fittings with color-coded tubing simplify the installation process. Filter replacement are designed for ease. No need to disconnect hoses or water lines. Just Twist On / Twist Off filter cartridges make changing filters a snap. Filter life: 6 -12 months, depending on your source water and usage.
iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply (F3-CUA4)
Three-piece filter pack including (1) PP sediment filter, (1) KDF+GAC filter, and (1) AC filter. Change every 6 months
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine and odor.
30-Day money back and 1-year satisfaction guarantee. Free lifetime tech support from our Atlanta base
iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs (F4-CUA4)
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor.
iSpring ATRF500 Transformer for 400/500 GPD RO System Booster Pump, 100-240VAC 2.5A to 36VDC 3.33A, fits RCS5T (pump #PMP500 sold separately) (ATRF500)
Boosts pressure up to 80 psi Can be mounted in several positions Safe power operation with low energy consumption ( low Voltage - 36 volt) Transformer is not included; 3/8 inch fitting Works with 500Gpd 400Gpd ro systems. Compatible with most reverse osmosis systems in the market
iSpring FPT100 Replacement Filter for RCD100-THCW Countertop Reverse Osmosis System, Composite Water Filter, with PP Sediment and Activated Carbon, Replacement Cycle: Up to 12 Months (FPT100)
DEDICATED REPLACEMENT FILTER - Designed for the iSpring RCD100-THCW countertop reverse osmosis system.
COMPOSITE PP & ACTIVATED CARBON FILTRATION - Multi-layer PP sediment and activated carbon filtration reduces common contaminants such as sand, rust, and chlorine for clean drinking and cooking water.
LONG-LASTING PERFORMANCE - Provides up to 12 months of effective filtration, depending on source water quality and daily water usage.
EASY FILTER REPLACEMENT - Twist-and-replace design enables quick, tool-free filter changes, making maintenance simple and hassle-free.
TRUSTWORTHY SUPPORT - America’s favorite RO brand, backed by lifetime technical support in Atlanta, GA.
iSpring ADS1K Clamp/Drain Saddle with Quick-Fitting #ADS1K, Black (ADS1K)
To be installed in the sink drain line to receive the waste water from the RO system
Features 1/4 inch quick-fitting
Nuts included. Made to fit on drain line between trap and sink basin
Compatible with most reverse osmosis systems (including Name brands) in the market
iSpring F3-RO600 2-Year Replacement Filter Set for RO600BN & RO600ORB Tankless RO Systems with 2x FCF600 & 1x MRO600 (F3-RO600)
F3RO600 Replacement Filter Pack for RO600BN/RO600ORB: This complete filter set includes four FCF600 composite filters and one MRO600 RO membrane, specifically designed for the iSpring RO600BN tankless reverse osmosis system. Engineered to last up to 2 years, it delivers up to 600 gallons of purified water per day with an efficient 2.5:1 clean-to-wastewater ratio. Maintain optimal system performance and enjoy consistently clean, great-tasting water with every use
Multi-Layer Filtration Performance: The FCF600 filter combines sediment and carbon block filtration, helping to reduce rust, sand, silt, chlorine, and unpleasant taste or odor. The MRO600 RO membrane targets dissolved solids and contaminants down to 0.0001 microns
High-Efficiency & Long-Lasting: These filters are engineered for high water flow and efficiency. The FCF600 composite filter typically lasts up to 12 months, while the MRO600 RO membrane can last up to 24 months, depending on your water quality and usage
Quick and Easy Filter Replacement: The twist-and-lock design allows for tool-free installation and replacement. No need to shut off the water supply—just twist, remove, and replace. Designed for convenience and minimal maintenance
Safe Materials and Reliable Support: Constructed with food-grade, BPA-free materials for safe filtration. Backed by iSpring’s US-based customer support and a 1-year limited warranty when registered. Enjoy cleaner, better-tasting water with confidence
iSpring ICEK-FT15FA15 Universal Refrigerator Filter, Fridge Top Water Filter, 2-stage (ICEK-FT15FA15)
Removes sediment, chlorine, lead, mercury and other contaminants
Standard 10 inch replacement filter cartridge
Install with push-to-connect quick fittings
The upgraded post-filters and alkaline 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 T55M 5.5 Gallon Residential Pre-Pressurized Water Storage Tank for Reverse Osmosis (RO) Systems (T55M)
5.5 Gallon Metal Pressurized Tank with up to 4 Gallon Holding Capacity
Stainless Steel 1/4" NPT Valve Thread
Made from food-grade material (Tested by independent third-party to meet NSF/ANSI standard)
Discharges effectively in both vertical and horizontal position
Pre-pressurized between 7-10 psi for common use
iSpring HC14-2PP Clear Housing, 1/2" Inlet/ Outlet with 2X FP15 10" x 2.5" Sediment Filter (HC14-2PP)
Size: 1/2" Reinforced Inlet/Outlet Connectors Fits 10"x2.5" Standard Filter Cartridges 2 x FP15 Sediment Filter included Tested by Independent Third-Party to Meet NSF/ANSI Standard Lifetime support from iSpring in Atlanta, GA at (678) 261-7611
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 FC15BX4 4.5x10 in. 5 micron Carbon Block (CTO) Water Filter Replacement Cartridge for Under Sink and Whole House Water Filtration Systems, Pack of 4 (FC15BX4)
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.
Each cartridge 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" filters. Official 2nd stage Carbon Block replacement filter cartridge for iSpring under sink water filter US21B and whole house water filtration system WGB21B; 1st stage for WGB21BM and WGB21B-PB. All 4 cartridges are individually sealed for freshness.
Your iSpring 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 ASOF500 Auto Flush Solenoid Valve for RCS5T RCB4T Commercial RO (ASOF500)
Compatible with most Reverse Osmosis systems with Booster Pump (including brand names) in the market.
36V DC
3/8" Jaco fitting.
iSpring F2WGB21BPF 2-Stage Whole House Water Filter Replacement Set for WGB21B-PF，Reduces up to 99% PFAS (PFOA/PFOS), 10” x 4.5” Filters, 1" Inlet/Outlet (F2WGB21BPF)
Targets Harmful PFAS Chemicals – The FC15B-PF carbon block filter is independently tested to reduce up to 99% of PFAS, including PFOA and PFOS, providing reliable protection from “forever chemicals” commonly found in municipal and well water.
Chlorine, Taste & Odor Reduction – In addition to PFAS, the carbon filter also reduces chlorine, VOCs, and unpleasant taste and odor, while the sediment filter captures rust, dirt, and sand to protect plumbing.
High Capacity & Long Lifespan – Each cartridge lasts up to 6 months or treats 50,000 gallons of water, depending on usage and water quality. Fits standard 10” x 4.5” housings in most home water filtration systems.
Peace of Mind Guaranteed – Backed by a 1-year limited warranty and lifetime technical support from our U.S.-based customer service team. Whether you’re buying your first system or replacing filters, we’re here to help before and after your purchase.
Please Note – This filter retains healthy minerals and does not reduce TDS. For total dissolved solids removal, pair with an iSpring Reverse Osmosis system—an ideal complement to any whole house water filtration system.