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Refurbished Zero Installation Purifier Reverse Osmosis Countertop Water Filter

Refurbished Zero Installation Purifier Reverse Osmosis Countertop Water Filter

Regular price $229.99
Regular price $269.99 Sale price $229.99
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  • Enjoy alkaline filtered water from a portable and convenient countertop system
  • Drink more water and enhance the flavor of your coffee, tea, and food with better water quality
  • Certified by IAPMO R&T to NSF/ANSI 58 for the reduction of TDS, Fluoride, Lead, PFOA/PFOS, Hexavalent Chromium, and Trivalent Chromium. 90-day certified refurbished warranty. May have some aesthetic blemishes or other signs of use
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        ZIP silver white reverse osmosis system

        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.

        ZIP space black countertop reverse osmosis water filter

        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

        Zip Zero Installation Purifier in the kitchen water loaded from the front for easy access

        Design and Efficiency

        It 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 a 50% (1:1) recovery rate – the best among reverse osmosis filters.

        Zero Installation Purifier reviews

        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.

        • Zero Installation Purifier simple single button operation

          Intuitive single-button operation

        • Zero Installation Purifier countertop water system pump

          CE-certified pump for quiet performance

        • Zero Installation Purifier reverse osmosis filters

          High-capacity, easy-to-change filters

        • Zero Installation Purifier water filter LED notification

          LED indicator for status & filter change notifications

        • Zero Installation Purifier countertop water purifier

          Removable pure water tank for easy cleaning

        • Zero Installation Purifier countertop water filter AC adapter

          CE & RoHS certified 110V or 220V compatible adapter

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        AlcaPure vs OnliPure vs others

        Alcapure vs onlipure vs others

        U1 vs Zero Installation Purifier
        How to use a TDS Meter by RKIN

        What are total dissolved solids or TDS?

        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 Water
        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)

        AlcaPure™ vs OnliPure™ Review

        AlcaPure™ Review


        Frequently Asked Questions

        Is Zero Installation Purifier Certified by a third party and BPA free?

        Yes, Zero Installation Purifier is made with BPA-free plastic and certified by IAPMO R&T to NSF/ANSI 58 standard for the reduction of TDS, Fluoride, Lead, PFOA/PFOS, Hexavalent Chromium, and Trivalent Chromium. Please click here to view the certification listing page and click here for individual contaminant reduction rates.

        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 the main product image at the top of the page.

        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 membrane. 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 the water quality you use to make purified water, and it 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?

        Please refer to the section below for all details on the replacement filters.

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

        How do I order replacement filters?

        If you sign up for the 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 this system 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 extensively studied by the scientific community.

        Because Zero Installation Purifier's unique design prevents 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 search online 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.

        Consumables and replacement cartridges

        4 Stages of Advanced Filtration:

        Your water quality may affect the longevity and replacement frequency of the filters. The Zero Installation Purifier Countertop Reverse Osmosis Water Filter comes ready to use out of the box. All the filters and reverse osmosis membrane are preinstalled. You don't need to purchase them separately when you buy the water system unless you are purchasing spares for the following filter change. 


        First Stage Filtration - A 5-micron sediment filter with a 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.

        MPN: RC-FT-82. Replace every 12 months or as needed.

        Second Stage Filtration - Coconut-based activated carbon block filter with high adsorption capability removes harmful chemical residues and carcinogens such as VOCs, THMs, and pesticides, eliminating foul odors and bad taste. MPN: RC-FT-92. Replace every 12 months or as needed. Or an Anti-Scale Version of the Carbon Block Filter for use with extremely hard water.

        MPN: RC-FT-90. Replace every 12 months or as needed.

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

        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 the 2nd stage Carbon Block filter with a PPH Anti-Scale Carbon filter to prevent premature RO membrane failure due to hardness build-up.

        Fourth Stage - 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.

        - 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.

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

        AlcaPure Post Filter, MPN - RC-ZIPFAP, Replace every 12 months or as needed.

        OnliPure Post Filter, MPN: RC-DIPFL2.5x10. Replace as needed.

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        Collapsible content


        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.

        Certified by IAPMO R&T to NSF/ANSI 58 standard for the reduction of TDS, Fluoride, Lead, PFOA/PFOS, Hexavalent Chromium, and Trivalent Chromium. Please click here to view the certification listing page and click here for individual contaminant reduction rates.

        For indoor non-commercial applications 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
        55.08% 55.08% 45.4 Gallons Per Day

        Shipping & Delivery

        Free standard shipping within the contiguous United States(lower 48 states).

        Orders are usually shipped the same or the next business day and delivered within 2-5 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.

        Price Match Guarantee

        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 12 months 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 12 months of your purchase date, please let us know, and we will refund the difference in price.

        Warranty & Returns

        You get an unconditional 90 days satisfaction guarantee on your Refurbished Zero Installation Purifier, which includes a warranty for the same period. Free shipping on warranty replacements. Learn more