ReviewsUnder Sink Reverse Osmosis System

Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 15 x 5, White

  • Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, and more..
  • Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water you’ll ever drink.
  • Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system.
  • Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water.
  • Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture.
  • Customizable RO Water Filter System: Express Water home water filtration systems are fully upgradable and customizable with quick connecting fittings. Try additional filtration attachments including UV Water Filter, Alkaline Water Filter, Deionization Water Filter, and more.
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5 Stage Undersink Reverse Osmosis Drinking Water Filter System RO Home Purifier with NSF Certified Membrane

  • SAFE & RELIABLE: Under-sink Reverse Osmosis water filtration and softener for pure, safer, and healthier water. Bluonics 5 stage RO system removes up....
  • CERTIFIED: NSF/ANSI 58 - Reverse Osmosis Drinking Water Treatment Systems. Premium quality RO system ensures the highest purification quality,....
  • PURE WATER: Enjoy clean, safe, good-tasting, unlimited water for your family every time you turn on the faucet, better than most bottled water at a....
  • EASY TO INSTALL: Complete system with DIY instruction, including complete color-coded tubing and all installation hardware. Also includes Quick....
  • Great after sales customer support: 30-day money-back guarantee. Extended manufacturer warranty. Lifetime tech support from Bluonics. Replacement....
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Frizzlife Reverse Osmosis System - Tankless 400 GPD Drinking Water Filtration System Quick Twist Under Sink RO Filter - 1.5 1 Pure to Drain - Reduce TDS Compact Footprint USA Tech Support PD400

  • [Top Tier Filtration Performance] Adopting composite pre-filter and RO membrane with highest filtration precision at 0.0001 micron, PD400 under sink....
  • [Innovative Tankless Design] Different from conventional reverse osmosis water filters, Frizzlife PD400 reverse osmosis system has an impact design....
  • [Low Drain Ratio & Ultra Long Service Life] The RO water filtration system has a remarkable low drain ratio at 1.5:1(pure: drain), saving up to 450%....
  • [DIY Intallation & Replacement] Compatible with most standard US kitchens(1/2”& 3/8”). Comes with a comprehensive manual, a quick guide, and a....
  • [MULTI-USAGE] The ro filter system can serve both your sink and refrigerator at the same time by using Frizzlife IMC-1 Ice Maker Kit. To solve the....
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Watts Premier 531417 RO Pure Plus (VOC) Reverse Osmosis w/Brushed Nickel, Top-Mount Twist Faucet

  • The RO-Pure Plus reverse osmosis filtration system was designed with you in mind, with a space saving, compact design that allows this system to fit under your sink with minimal space requirements, and with a 3 gallon storage tank you will have enough water for your daily use..
  • Changing the filters is as easy as pushing a button! With the built in shut off valve when removing the filters there is no mess like traditional models. The filters snap out and are easily inserted..
  • Certified to NSF/ANSI 58 Certified Reverse Osmosis Units.
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Pure Blue H2O 4-Stage 50 GPD Certified Reverse Osmosis Water Filter System

  • 4 Stage Reverse Osmosis Water Filter System: This professional grade system has 4 separate filters to ensure clean, great tasting water and an electronic faucet monitor that notifies you when it’s time to change your filters.
  • Skip the Bottled Water: This home filter system includes 1 Stage 1 Sediment Filter, 1 Stage 2 Pre Carbon Block Filter,1 Stage 3 Membrane Filter, and 1 Stage 4 Post Carbon Block Filter.
  • Enjoy Better Water At Home: This water filtration system is certified to NSF/ANSI standards 58 and 372, helping reduce Lead, Fluoride R, Arsenic, Cadmium, Chromium 6, Giardia, and more.
  • Affordable, Clean Water Solutions: Pure Blue makes water filtration systems, reverse osmosis filters and other water treatment systems, that clean, filter and restore water to a pure, uncontaminated state.
  • Pure Blue: We make premium water filtration systems, including faucet filters, whole house filters, under the sink filters, shower filters and more, so you can provide clean water for your whole family.
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Pure Blue H2O 5 Pack Annual Replacement Filters for Four Stage Reverse Osmosis Water Filtration System

  • Replacement Filters: Get everything you need for another year of clean, clear water with this annual filter replacement 5 pack! Made for your Pure Blue H2O Four Stage Reverse Osmosis Water Filtration System.
  • Reduce Sediment, Contaminants, and Chlorine: This 5 pack of reverse osmosis filter replacements includes 2 Stage 1 Sediment Filters, 2 Stage 2 Pre Carbon Block Filters, and 1 Stage 4 Post Carbon Block Filter.
  • Enjoy Better Water At Home: With a simple twist-lock manifold, changing filters is simple and sanitary. Our filters are NSF certified and reduce sediment, contaminants, and chlorine taste and odor.
  • Affordable, Clean Water Solutions: Pure Blue makes water filtration systems, reverse osmosis filters and other water treatment systems, that clean, filter and restore water to a pure, uncontaminated state.
  • Pure Blue: We make premium water filtration systems, including faucet filters, whole house filters, under the sink filters, shower filters and more, so you can provide clean water for your whole family.
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iSpring RCC7AK-UV NSF Certified 75GPD 7-Stage Under Sink Reverse Osmosis RO Drinking Water Filtration System with Alkaline Remineralization Filter and UV Ultraviolet Filter

  • Certified to NSF/ANSI 58, this Reverse Osmosis under sink mounted water filter and Point-of-use water softener contains 7 different stages of....
  • With its advanced 11 watt UV stage, the RCC7AK-UV is a suitable option to deal with all kinds of water including well water and other unreliable water....
  • Reverse Osmosis (RO) removes not only harmful pollutants but also a few helpful minerals. The Alkaline Remineralization (AK) filter restores healthy....
  • Quality components ensure reliability and low maintenance for many years to come. Clear see-through 1st stage housing makes filter inspection a snap..
  • Feed Water pH - 3.0 -11.0. Feed Water Pressure - 45-70 psi. Feed Water Temperature- 40-100 F (4 - 38 C). Please note, this RO system under sink does....
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Pure Blue H2O Stage 3 Membrane Replacement Filter

  • Stage 3 Membrane Filter Replacement: This Stage 3 Membrane Filter is made for your Pure Blue H2O Four Stage Reverse Osmosis Water Filtration System. Recommended replacement every 2-5 years.
  • Reduce Contaminants: This high-purity, thin-film-composite membrane reduces total dissolved solids and harmful contaminants, including Fluoride, Lead, Arsenic, Chromium 6, Cysts, Turbidity, TDS, and Radium 226/228.
  • Enjoy Better Water At Home: Your water filtration system helps ensure you have clean drinking water. The Stage 3 Membrane Filter can handle up to 50 gallons/day and filters down to 1/10,000th of a micron.
  • Affordable, Clean Water Solutions: Pure Blue makes water filtration systems, reverse osmosis filters and other water treatment systems, that clean, filter and restore water to a pure, uncontaminated state.
  • Pure Blue: We make premium water filtration systems, including faucet filters, whole house filters, under the sink filters, shower filters and more, so you can provide clean water for your whole family.
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NU Aqua Ice Maker and Refrigerator Connection Kit For Reverse Osmosis Filtration System

  • COMPATIBILITY: Works with NU Aqua Platinum Series and most standard under sink reverse osmosis systems using 1/4” tubing. Multiple uses such as ice makers, water coolers, dispensers, humidifiers, refrigerators and many more.
  • EASY INSTALLATION: Featuring quick connect fittings your fridge will produce crystal clear, clean and great tasting ice within less than 30 minutes. Easy to use push-in fittings require no hand tools for installation.
  • INCREASES RO SYSTEM BENEFITS: Not only will your reverse osmosis system produce drinking water it will now be connected to your ice maker so that you can have great tasting ice. The provided T fitting allows the system to function for both application with no loss in performance..
  • HIGH QUALITY COMPONENTS: Superior high strength quick connect fittings and adapters ensure long lasting and a guaranteed leak free experience.
  • KIT INCLUDES: 1x 16FT 1/4” white tubing, 1x 1/4” x 1/4” x 1/4” T valve, 1x 1/4” x 1/4” Inline shut off valve, 1x compression fitting set.
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PUR® Quick-Connect Carbon Block Filter for PQC1FS and P1QC7506BLS

  • Replacement kit includes 1 sediment filter and 2 carbon block filters.
  • for use with the PUR 4-Stage Under Sink Quick-Connect Reverse Osmosis Water Filtration System PQC4RO.
  • NSF/ANSI Standard 42, 58 and CSA B483.1 certified to reduce multiple contaminants including lead, cysts, TDS and heavy metals, as well as particulates such as sand, rust and dirt.
  • Quick-connect design ensures a fast and easy filter replacement under your sink.
  • For best system performance, replace the filters every 6 months.
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Watts Premier WP531407 RO Pure Reverse Osmosis Water Filtration System with Top-Mount, Air-Gap Faucet, Brushed Nickel

  • This Watts Premier Reverse Osmosis system consists of four stages of filtration based upon these treatments: sediment pre-filter reduces dirt, silt and rust.
  • the carbon pre-filter reduces chlorine taste and odors and conditions the water before it is treated by the reverse osmosis membrane.
  • the 50 GPD membrane reduces TDS and other contaminants like chromium, arsenic, copper, lead, and the carbon post-filter reduces chemicals like MTBE's, atrazine, benzene, 2,4-D, and lindane Sediment (WP105311), Carbon (WP105351), 50 GPD Membrane (WP105331) and Post Carbon (WP105381).
  • The system includes a RO Pure Reverse Osmosis module with four pre-installed filters.
  • a brushed nickel, monitored, top-mount, air-gap faucet, and 3 gallon storage tank giving you crystal clear, high-quality, and great-tasting drinking water..
  • This space-saving, compact design allows this system to fit comfortably under your sink, requires fewer tube connections, includes back-flow prevention valves installed between the elements and cartridges have double O-rings so they won't leak..
  • The easy, quick-change push release filter system allows for easy filter change with no need to shut off the water source, is installed with check valves in the filter lid between cartridges to p....
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