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Refurbished Zero Installation Purifier Reverse Osmosis Countertop Water Filter

56 reviews
Regular price $339.99
MSRP $603.36 Regular price Price $349.95
Sale price Sale $339.99 Save 44% Sold out

Transforms ordinary tap water into pure, healthy, delicious, and alkaline drinking water.

  • Removes up to 99% of all contaminants: Fluoride, Chlorine, Heavy Metals & others. BPA Free.
  • NSF/ANSI 58 Certified Reverse Osmosis Membrane.
  • Perfect for apartments, condos & RVs.
  • Warranty on refurbished units is 90 days.
  • Free Shipping to any state within the continental US.
  • Might have some aesthetic blemishes or other signs of use.
  • Comes with brand new filters and reverse osmosis membrane preinstalled. 
  • Dimensions - W 9.5", L 14.5", H 16.25". View in your space.

    New Zero Installation Purifiers are available here


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    As seen on AMC's NewsWatch TV

    Countertop Water Filter

    Delicious Purity

    AlcaPure Edition Filtered Water has a small amount of Calcium and Magnesium Minerals returned back to purified water to give you a taste comparable to your favorite bottled water: Alkaline 7-8pH, with beneficial minerals added.


    OnliPure Edition Filtered Water brings the TDS reading to zero. Zero TDS or Total Dissolved Solids is perfect for people who want Absolute Purity.

    Beautiful Convenience

    Works just like your coffee maker. No messy hoses and leaky diverter valves that fail all the time. Just fill the bottom pitcher with water from your kitchen faucet, push the button and walk away.

    In about 15 minutes you will have a 1/2 gallon of pure alkaline water in the top dispenser for you to use.


    - Portable
    - Dimensions: W 9.5", D 14.5", H 16.25"
    - Will look great in your home or office

    Design and Efficiency

    Will look great in your kitchen. There are no leaky diverter valves or bulky hoses to attach to your faucet.

    Since water is loaded and dispensed from the front of the unit, you can place it even in the tightest spaces imaginable. No additional top or side clearance is required.

    Uses only 24W of power, less than a light bulb and has 50% (1:1) recovery rate – best among reverse osmosis filters.

    Pure Water Made Simple

    No need to waste your time waiting for the filtering process to complete.

    Fill the bottom container with 1 gallon of tap water, push the button and walk away. In about 15 minutes, the top container will be filled with 0.5 gallons of purified water and the unit will turn itself off.

    Top and bottom BPA-FREE containers can be easily removed and cleaned with dish soap.


    CE certified pump for quiet performance

    Removable pure water tank for easy cleaning

    High capacity, easy to change filters

    Intuitive single-button operation

    CE & RoHS certified 110V or 220V compatible adapter

    LED indicator for status & filter change notifications


    Countertop Water Filter


    US PATENT: 8945377B2

    For more information on filter replacements, please see Frequently Asked Questions below.

    STAGE 1 – Five Micron Sediment Filter

    Unique gradient pore structure traps larger particles in its outer layer and smaller ones in the inner layer, effectively removing particles such as sand, sediment, and rust.

    STAGE 2 – Activated Carbon Block Filter

    Coconut-based activated carbon block filter with high adsorption capability removes harmful chemical residues and carcinogens such as VOCs, THM’s, pesticides, eliminating foul odors, bad taste.

    For use with extremely hard water Anti-Scale carbon filter alternative is available.

    STAGE 3 – Reverse Osmosis Membrane

    NSF/ANSI 58 Certified reverse osmosis membrane with 75 Gallon Per Day filtration capacity purifies water by blocking virtually all the harmful contaminants. It’s the heart of the reverse osmosis system.

    STAGE 4 – Choice of Exclusive Post Filter

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

    - OR -

    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.


    Total Dissolved Solids Or TDS

    is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid. TDS is sometimes referred to as parts per million (ppm). You can test water quality levels using a digital TDS meter.

    Primary sources for TDS in Receiving Waters

    are agricultural & urban runoff, clay-rich mountain waters, leaching of soil contamination, & point source water pollution discharge from industrial or sewage treatment plants.

    TDS in parts per million (PPM)

    Chart values represent national U.S. averages. Actual TDS levels for geographic regions may vary.







    Is Zero Installation Purifier BPA free?

    Yes, Zero Installation Purifier is made with BPA free plastic.

    What are the dimensions of the Zero Installation Purifier?

    A: 9.5 inches Wide, 16.25 inches High, and 14.5 inches Deep.For mobile devices, view the Zero Installation Purifier in your space, via Augmented Reality (AR), by tapping a 3D model below.

    What is the difference between AlcaPure and OnliPure Editions?

    AlcaPure Edition post filter returns Calcium and Magnesium minerals back to water once it has been purified by Reverse Osmosis. This increases the pH to an alkaline level similar to spring water.

    OnliPure Edition post filter does exactly the opposite - reduces even the tiniest amount of TDS left over after the Reverse Osmosis to zero. This provides lab-grade purified water quality similar to distilled water. Slight variations in the calibration and accuracy of different TDS meters may result in the TDS reading of 1 or 2 PPM.

    For most People, AlcaPure Edition Zero Installation Purifier is the right choice, unless you have been accustomed to distilled water taste.

    What if I want to switch editions of the Zero Installation Purifier later?

    Switching from the AlcaPure edition to the OnliPure edition, or vice versa, is as easy as ordering a different post-filter and clips for attachment. Filters and attachment clips are available here.

    How long does it take to fill the top tank with purified water?

    It depends on water quality you use to make purified water and might take up to 20 minutes. On average about 15 minutes.

    How much filtered water does the top tank hold?

    1/2 Gallon of filtered water.

    How often do the filters need to be changed and how much do they cost?

    Every 12 Months.


    AlcaPure Edition bundle: $49.95 per complete set of 3 filters consisting of two pre-filters and one AlcaPure post filter.

    OnliPure Edition bundle: $69.95 per complete set of 3 filters consisting of two pre-filters and one OnliPure post filter. Depending on local water quality, filters may need to be replaced more often to maintain 0 TDS.

    Getting an abnormal filtered water taste is a good indication that the OnliPure Ion-Exchange post-filter has been exhausted and needs replacement.

    How often does reverse osmosis membrane need to be changed and how much does it cost?

    Every 2-4 years. Zero Installation Purifier Reverse Osmosis Membrane costs $49.95. You will know right away if the membrane has failed because the unit will not function as usual. Example: There is less filtered water in the top tank.

    How do I order replacement filters?

    If you sign up for our filter subscription program during checkout, the replacement filters will be delivered to you every 12 months automatically. Otherwise, replacement filters can be ordered on our website or over the phone.

    Does Zero Installation Purifier use proprietary filters available only from RKIN and reseller partners?

    Yes, we designed our own filters to make filter changes as easy as possible.

    Does Zero Installation Purifier remove the "XYZ" contaminant?

    Zero Installation Purifier uses a multi-stage reverse osmosis technology. Reverse osmosis is one of the best ways to purify water when it comes to cost per gallon, speed, and purity of the water. Undersink reverse osmosis water filters have been around for decades and have been extensively studied by the scientific community.

    Because of Zero Installation Purifier’s unique design, preventing back-pressure within the RO membrane, it performs as well or better than most high-quality under sink reverse osmosis systems.

    The second stage - Carbon Block pre filter alone tackles a multitude of contaminants even before they get to the reverse osmosis membrane.

    We understand that you may want to do your own research. So the fastest way to get an answer is to do an online search for "reverse osmosis removes XYZ" and review scientific papers. Replace "XYZ" with a contaminant of your choice. Or you can always contact our customer support here.

    What is the warranty on Zero Installation Purifier?

    You get an unconditional 90 days money-back guarantee on your Refurbished Zero Installation Purifier, which includes warranty for the same period. We will even cover return shipping if the product is returned within 30 days of purchase. Free shipping on warranty replacements.

    What if I have questions or need support?

    You can always call us at 1-800-803-4551 Monday through Friday 9AM-5PM EST or submit a request here.


    If the water being filtered is from a public water supply, it will comply with requirements and your RKIN Zero Installation Purifier will substantially improve the water quality.


    For indoor non-commercial application only:

    Use room temperature water 20-26°C (68-78°F)
    Ambient Temperature: 5-45°C (41-113°F)
    Input Power: 100-240V 50/ 60 Hz
    Electrical operation: 24VDC, 24 W

    Inlet water quality limits:

    Max Total Dissolved Solids (TDS) 800 mg/L
    Max Hardness 25 gpg (428 mg/L)
    Sulphide, Iron & Manganese <0.1 mg/L
    Chlorine <4 ppm, pH 3-11, Turbidity 5 NTU Max.

    Recovery Rating Efficiency Rating Production Rate



    40 Gallons Per Day

    Your water quality may affect the longevity and replacement frequency of the filters.

    First Stage Filtration - 5 Micron Filter. MPN: RC-FT-82. Replace every 12 months or as needed.

    Second Stage Filtration: - Carbon Block Filter. MPN: RC-FT-92. Replace every 12 months or as needed. Or Anti-Scale Version of Carbon Block Filter. MPN: RC-FT-90. Replace every 12 months or as needed.

    Third Stage Purification - 75 Gallon Per Day RO Membrane. MPN: ZIPM75. Replace every 24 months or as needed.
    Hardness over 10 gpg (171 mg/L) may reduce the lifespan of the RO membrane. If the filtered water production decreases over time, please replace the RO membrane and substitute 2nd stage Carbon Block filter with PPH Anti-Scale Carbon filter to prevent premature RO membrane failure due to hardness build up.

    Fourth Stage - AlcaPure Post Filter, MPN - RC-ZIPFAP, Replace every 12 months or as needed. OnliPure Post Filter, MPN: RC-DIPFL2.5x10. Replace as needed.

    Free standard shipping within US and Canada.

    Orders are usually shipped the same or the next business day and delivered within 2-5 business days. RKIN fulfilment network is able to deliver Zero Installation Purifier to 95% of US population within 2 business days. Subject to in-region item availability and seasonal carrier shipping performance.

    Order tracking numbers are emailed as soon as they become available. If you do not receive your tracking number within 24 business hours, please check your spam folder.

    We work diligently to make sure that we offer the best prices for our products online. If you come across another retailer offering a lower price for our products than we are within 90 days of your purchase date, please let us know and we will refund you the difference in price.

    We want you to feel confident that you are getting the absolute best price for the product you are ordering from us. If you find that our own website,, has lowered the price for the same item you ordered within 90 days of your purchase date, please let us know and we will refund the difference in price.

    You get an unconditional 90 days money-back guarantee on your Refurbished Zero Installation Purifier, which includes warranty for the same period. We will even cover return shipping if the product is returned within 30 days of purchase. Free shipping on warranty replacements.


    ✔️ Alkaline or Zero TDS Filtered water
    ✔️ Portable and convenient countertop system
    ✔️ No more shopping trips just to buy bottled water
    ✔️ When water tastes this good, you will hydrate more
    ✔️ Better tasting coffee, tea, and food
    ✔️ Ready for use out of the box with all the filters pre-installed
    ✔️ Ships the same or the next business day
    ✔️ 90 day warranty
    ✔️ 90 day money-back guarantee

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    Customer Reviews
    4.3 Based on 56 Reviews
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    85reviewers would recommend this product Write a Review Ask a Question

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    Filter Reviews:
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    Sucely M.
    United States United States
    I recommend this product

    I love the concept but the filter I received is defective

    Taste of water is really good. Design needs to be improved, it leaks from everywhere and it’s difficult to handle the water tank. I am in the process of returning this one and getting the new model.


    Thanks for sharing this and we apologize as we know this is not what you expected for this purchase. This will surely help us improve as we grow. Please be assured that the relevant team has been advised about the issue for improvement. We're happy that we're able to assist you with the return. Please feel free to contact our customer support at or 1-800-803-4551 Mon-Fri: 9 AM-5 PM EST with any follow-up questions. Stay healthy!

    Renee L.
    United States United States
    I recommend this product

    Good taste

    Overall it’s a good purchase, easy installation, love the design , taste of water, and tds meter reading within drinking range. The only complaint I have is the ratio of drinking water and disposal water is 1:1. A lot of water is wasted. Otherwise it’s perfect. Refurbished Zero Installation Purifier Reverse Osmosis Countertop Water Filter Review

    The Reverse Osmosis process does produce wastewater in any system. Hope this information helps.

    Sara S.
    United States United States
    I recommend this product

    Best tasting water

    My family loves our reverse osmosis countertop water filter! Super easy to use and kid friendly.


    Thank you so much for your review. We appreciate it very much.

    Jeffrey H.
    United States United States
    I recommend this product

    What a product.

    Great. What a difference in tra, cooking and general drinking. Wish I had it years sgo

    Andrew S.
    United States United States
    I recommend this product

    Great machine!

    Love it even more than I expected! The water tastes great and makes me feel great too! Thx


    We love to hear that we could exceed your expectations & have you feeling great! We thank you for your continuous business & support, Andrew.

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