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Flash Undersink Reverse Osmosis System with Chrome Lead-Free Faucet

Flash Undersink Reverse Osmosis System with Chrome Lead-Free Faucet

27 total reviews

Regular price $329.45
Regular price $499.95 Sale price $329.45
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Post Filter Option
  • Enjoy the peace of mind that comes with up to 99% removal of contaminants, including fluoride, chlorine, and heavy metals
  • Choose from our AlcaPure or OnliPure editions for alkaline pH or zero TDS filtration options
  • Trust in our NSF/ANSI 58 certified reverse osmosis membrane, 1-year warranty and satisfaction guarantee
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        • 1-Year Satisfaction Guarantee
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        RKIN Water Systems As seen on AMC's NewsWatch TV

        Flash undersink reverse osmosis filter system

        Delicious Purity

        AlcaPure Post-Filter 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.

        -OR-

        OnliPure Post-Filter brings the TDS reading to zero. Zero TDS or Total Dissolved Solids is perfect for people who want Absolute Purity.

        RKIN Flash Undersink Reverse Osmosis System with Chrome Lead-Free Faucet - RKIN

        Efficient Filtration

        75-Gallon Per Day Reverse Osmosis Membrane delivers 50% faster pure water production compared to most other undersink reverse osmosis water filters.

        RKIN Flash Undersink Reverse Osmosis System with Chrome Lead-Free Faucet - RKIN

        Sanitary Filter Replacements

        Are now quick and easy with a twist-on and-off mechanism that eliminates leaky O-rings.

        RKIN Flash Undersink Reverse Osmosis System with Chrome Lead-Free Faucet - RKIN

        Non-Electric Operation

        The pump-less operation makes the filtration process the quietest in the market without using any electricity.

        This light weight system can be mounted under the sink or secured in place with velcro.

        Flash undersink reverse osmosis system space saving design

        Space Saving Design

        Undersink space is in very high demand, and your undersink water filter should not be taking up most of it.

        Flash R.O. system's slim design and the small tank will allow for more storage space.

        DIMENSIONS:

        Flash R.O. Dimensions - W 5.5", L 14", H 16"
        R.O. Tank Dimensions - W 11", L 11", H 14.5"
        R.O. Tank can be placed vertically or horizontally

        Flash undersink reverse osmosis system lead free faucet

        Chrome Lead Free Faucet

        Chrome Gooseneck Leadfree faucet with easy-to-use bat-style handle makes filling up drinking glasses and whole pitchers effortless.

        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)

        • Flash undersink reverse osmosis filter

          Reverse Osmosis System with Filters

        • Flash undersink reverse osmosis system lead free faucet

          Lead-Free Faucet

        • Flash 3.2 Gallon Storage Tank

          3.2 Gallon Storage Tank

        • Flash 1.5 Drain Pipe Saddle

          1.5" Drain Pipe Saddle

        • Flash Tank Shut-Off Valve

          Tank Shut-Off Valve

        • Flash Faucet Adapter

          Faucet Adapter

        • Flash Tee for Refrigerator Connection

          ¼" Tee for Refrigerator Connection

        • Flash tubing

          ¼" and ⅜" Tubing

        • Flash Comp or NPT Diverter Valve

          ⅜" Comp or ½" NPT Diverter Valve

        • Installation and Product Manual

          Installation and Product Manual

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        Flash reverse osmosis filter installation

        Frequently Asked Questions

        Who installs my RKIN Water System?

        RKIN ships direct from the factory, saving you over 60% of the standard retail cost. Our products' user-friendly design makes installation easy with or without professional help. However, if you're not mechanically inclined, we do recommend hiring a plumber to help with installation.

        Learn more about RKIN installation services, currently only available in southwest Florida.

        A: Flash R.O. Dimensions - W 5.5", L 14", H 16", R.O. Tank Dimensions - W 11", L 11", H 14.5", R.O. Tank can be placed vertically or horizontally.

        No, the Flash R.O. system doesn't have an electric pump but instead uses the natural flow rate of your water supply to channel the water through the filtration process. Therefore, the Flash R.O. system doesn't require electricity to operate.

        Any faucet specifically made for RO systems with a 1/4" connection would work with the Flash RO system.

        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.

        Switching from the AlcaPure edition to the OnliPure edition, or vice versa, is as easy as ordering a different post-filter.

        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.

        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.

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

        Consumables and replacement cartridges

        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 and Third Stage Filtration - Carbon Block Filter. MPN: RC-FT-92. Replace every 12 months or as needed.

        Fourth 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 a PPH Anti-Scale Carbon filter, MPN: RC-FT-90, to prevent premature RO membrane failure due to hardness build-up.

        Fifth Stage - AlcaPure Post Filter. MPN: RC-FT-87. Replace every 12 months or as needed. OnliPure Post Filter. MPN: RC-FT-OP. Replace as needed.
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        Collapsible content

        Specs

        If the water being filtered is from a public water supply, it will comply with requirements, and your RKIN Flash Undersink Reverse Osmosis System will substantially improve the water quality.

        • For indoor non-commercial applications only
        • Protect from excessive cold or heat: do not expose to temperatures below 39°F (4°C) or above 113°F (45°C).
        • Flash R.O. Dimensions - W 5.5", L 14", H 16"
        • R.O. Tank Dimensions - W 11", L 11", H 14.5"

        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

        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.

        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, www.rkin.com, 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.

        You get an unconditional 1-year satisfaction guarantee, which includes a warranty for the same period.

        Free shipping on warranty replacements. Learn more

        Reviews

        Customer Reviews
        4.7 Based on 27 Reviews
        5 ★
        89% 
        24
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        4% 
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        Filter Reviews:
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        KO
        08/03/2024
        keith o.
        United States United States
        I recommend this product

        RKIN Flash Undersink Reverse Osmosis System

        we went from the countertop reverse osmosis system to the under counter due to the amount of water we use. the installation was pretty basic if you are a Diy person. all the fittings are easy to use and even with drilling a small hole in granite for the faucet the entire install took less than an hour. the water tastes great and it is a comfort to know it has been filtered.

        PM
        07/11/2024
        Perla M.
        United States United States

        Necesito un técnico para instalar mi sistema de filtro podría decirme donde encuentro uno acá en los Angeles California

        DP
        01/22/2024
        david p.
        United States United States
        I recommend this product

        good water!!!

        Good quality GREAT tasting water Dropped my sarasota chlorine levels way down

        01/22/2024

        RKIN.com

        Hello David, we greatly appreciate you taking the time to share your positive experience with RKIN Water System. Your feedback is invaluable to us, and we are thrilled to learn that our product has met your expectations. It's fantastic to hear that you've noticed the good quality and great taste of the water provided by RKIN. We take pride in delivering high-quality water systems, and your satisfaction is a testament to our commitment to excellence. Moreover, we are delighted to hear that the RKIN Water System has effectively lowered your Sarasota chlorine levels. Your experience aligns with our mission to provide solutions that not only enhance water quality but also contribute to the overall well-being of our customers. If you ever have any further comments, questions, or if there's anything else we can assist you with, please don't hesitate to reach out. Your satisfaction is our priority, and we are here to ensure you continue to enjoy the benefits of RKIN Water System. Once again, thank you for choosing RKIN. We look forward to serving you in the future.

        M
        01/22/2024
        Michelle SVG verified by SHOP
        United States United States

        So far this is great! Water taste amazing!

        TA
        09/22/2023
        Tamila A.
        United States United States
        I recommend this product

        The Best water filter systems on the market!

        RKIN are the best water filters on the market. I have been using water filter from RKIN for the past 5 years without any issues or problems. Water taste 200% better than from bottles. Great customer service, very helpful and knowledgeable especially Aziza very kind.

        09/22/2023

        RKIN.com

        Hi Tamila, thank you so much for your glowing review! We're thrilled to hear that you consider RKIN's water filter systems as the best on the market and have had a positive experience using them for the past five years. It's fantastic to know that the water tastes significantly better than bottled water for you. We take great pride in providing exceptional customer service, and it's heartening to hear that Aziza, in particular, has been very helpful, knowledgeable, and kind during your interactions. Your feedback motivates us to continue delivering top-quality products and services. If you ever have any questions or need assistance in the future, please don't hesitate to reach out. We appreciate your loyalty and trust in RKIN! :-)