We build products that make clean water and air simple!

We started RKIN for one reason: getting truly clean water and air at home was expensive, unappealing, and a hassle to install or maintain. As renters and homeowners, we were stuck between wasteful bottled water, complex plumbing, and clunky purifiers that didn’t deliver.

So we built zero‑installation reverse osmosis systems that look great on your counter and deliver pure, amazing‑tasting water from day one - no tools, no holes, no hassle. Then we brought the same “pure life, simplified” promise to air with HEPA 14 purification plus UV, activated carbon, and ion technology to remove allergens, pet dander, odors, and wildfire smoke - quiet Sleep Mode at night, Auto Mode with real‑time air‑quality readouts and app control for peace of mind.

For homeowners who want protection at every tap, we engineered whole‑house systems - water softeners and filters that tackle hardness, iron, sulfur, and chlorine to protect plumbing, extend appliance life, and upgrade every shower and sip. Through it all, our promise never changed: simplify purity. We obsess over reliability, design for everyday living, and make upkeep easy, backed by fast, expert support and strong warranties - so you get healthier water, cleaner air, less plastic, and a home that just works.

As seen on

RKIN as seen in HGTV Magazine
RKIN as seen in Rolling Stone Magazine
RKIN as seen on EPA.com
RKIN as seen in Water Conditioning and Purification Magazine
RKIN as seen on The Spruce Eats
RKIN as seen on GadgetFlow
RKIN as seen on Kickstarter
RKIN as seen on Tap Score
RKIN as seen in HGTV Magazine
RKIN as seen in Rolling Stone Magazine
RKIN as seen on EPA.com
RKIN as seen in Water Conditioning and Purification Magazine
RKIN as seen on The Spruce Eats
RKIN as seen on GadgetFlow
RKIN as seen on Kickstarter
RKIN as seen on Tap Score
RKIN as seen in HGTV Magazine
RKIN as seen in Rolling Stone Magazine
RKIN as seen on EPA.com
RKIN as seen in Water Conditioning and Purification Magazine
RKIN as seen on The Spruce Eats
RKIN as seen on GadgetFlow
RKIN as seen on Kickstarter
RKIN as seen on Tap Score
RKIN as seen in HGTV Magazine
RKIN as seen in Rolling Stone Magazine
RKIN as seen on EPA.com
RKIN as seen in Water Conditioning and Purification Magazine
RKIN as seen on The Spruce Eats
RKIN as seen on GadgetFlow
RKIN as seen on Kickstarter
RKIN as seen on Tap Score

  • RKIN

    Founded in 2008

  • RKIN Water Systems Water Quality Association Member
  • RKIN BBB accredit business
  • 100% BEST PRICE GUARANTEE
  • INSURED FAST SHIPPING
  • SAFE AND SECURE CHECKOUT
  • EXPERT STAFF SUPPORT

  • Products

    Whether you own or rent, we have a solution for you.

    From whole-house filtration systems to portable water purifiers, RKIN makes a wide selection of high-quality water filters tailored to any household needs.

    We focus on delivering products that are well-built and user-friendly. Our products arrive at your doorstep install-ready with little to no assembly required.

    Explore RKIN Products 

  • SEE The Difference

    Why are our products superior?

    Taking full advantage of modern science and logistics allows us to build products that are:

    • Simple - to install, use and maintain
    • Effective - in their primary function
    • Elegant - pleasingly graceful and stylish in appearance

    We make it easy for you to get the best quality water throughout your home that you deserve.

  • The RKIN Guarantee

    We want you to feel secure about your purchase. That is why we stand behind our products with an unmatched one-year satisfaction guarantee.

    Industry-leading warranties are included on all our products. You can feel confident that you are receiving the highest quality water solutions for your home.

    The RKIN team is dedicated to providing renowned excellent customer service.
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting
RKIN U1 Countertop Water Filter System
Water Systems by RKIN Video
Woman holding a glass and a sign with 'IRON' in a kitchen setting
Woman holding a glass of water in a kitchen with 'SULPHUR' text overlay
Woman in a kitchen holding a glass of water with the word 'CHLORINE' displayed.
Woman in a kitchen with 'PFAS' text overlay
Woman holding a glass of water in a kitchen with 'LEAD' text overlay
Woman holding a glass of water in a kitchen with 'Hardwater' text overlay
Woman holding a glass of water with a flower, with the word 'PESTICIDES' displayed.
Woman in a kitchen with 'MEDS' logo overlay
Woman holding a glass of water with a blue bacterium floating above it, set against a blurred indoor background.
Woman in a red sweater holding a bottle with 'BOTTLE' text in a kitchen setting

DRINKING WATER SYSTEMS

RKIN water filters for drinking water are based on powerful reverse osmosis technology. The best possible water purity combined with the lowest cost per gallon of purified water make our products an obvious choice for environmentally conscious consumers.

OnliPure™ The specialty Ion Exchange Media inside our OnliPure Post Filter reduces any leftover contaminants after the Reverse Osmosis process to zero TDS. Measure and confirm from your home with a simple TDS meter.

AlcaPure™ Polishing Alkaline Post Filter returns beneficial minerals – Calcium and Magnesium to purified water for the best taste. It also increases the alkalinity of the water to a perfectly balanced level of 7-8 pH.

    • Transform ordinary tap water into pure, healthy, and delicious drinking water.
    • AlcaPure Edition for Alkaline pH or OnliPure Edition for ZERO TDS.
    • Remove up to 99% of all contaminants: Fluoride, Chlorine, Heavy Metals like Lead & others.
    • NSF/ANSI 58 Certified Reverse Osmosis Membrane.
  • RKIN Drinking Water Systems - Zero Installation Purifier
    Countertop Water Systems 
  • RKIN Drinking Water Systems - Flash
    Undersink Water Systems 

WHOLE HOUSE WATER TREATMENT

Water Softeners: Mineral build-up, or scale, can occur in plumbing and household appliances when your water is hard. This scale can reduce the life of appliances, raise the cost of heating your water and clog pipes. Soft water has many benefits that make life more enjoyable.

Water Filters: Remove up to 99.6% of chlorine and other contaminants with our whole house water filter system. It has multiple lines of defense against harmful chemicals and pollutants including: Taste, Odor, Chlorine, Chloramine, Haloacetic Acids, MTBE & THM's, Herbicides, Pesticides, and many others.

Well Water Systems: Solutions for smelly, staining, hard, and sediment water issues. Transform problem well water into filtered, soft & healthy water throughout your entire home. Protection against hardness build-up, iron stains, sediment, and sulfur “rotten egg” odor.

RKIN free whole house water system consultation

Stop scale, smells, and stains - talk to a water pro and get your best‑fit system.

In 30 minutes, an RKIN Whole Home specialist will review your water, compare options, and give you a clear recommendation with pricing and install path - zero pressure, no obligation.

Diagnosis: City or well - identify the real cause (scale, iron, sulfur, chlorine).
Clarity: Exact model, estimated costs, DIY vs. pro install guidance.
Confidence: Straight answers on maintenance, warranties, and timelines.

Schedule my 30‑min consultation

Prefer to talk now? Call 1‑800‑803‑4551 (Mon–Fri, 9 AM–5 PM EST)