iSpring RCC7AK High Capacity Under Sink 6-Stage Reverse Osmosis Drinking Water Filtration System with Alkaline Remineralization

Today:$21949
At other retailer: $300.01
Free Shipping*
Learn More


Start free 30-day trial, then $19.95/yr. Learn More

Free Shipping
Free Shipping
on every purchase you make
Earn Rewards Back
Rewards for Purchases
when you shop at Overstock
Free Returns
Free, No-Hassle Returns
on select clothing, shoes & jewelry
Rewards for Reviews
Rewards for Reviews
when you tell us what you think
Additional Perks
Additional Perks
on hotels, dining, and more
ITEM# 18864042
  • Delivery Estimate

    Select a Product Option to view shipping

      **Delivery date is approximate and not guaranteed. Estimates include processing and shipping times, and are only available in US (excluding APO/FPO and PO Box addresses). Final shipping costs are available at checkout.

    • Warranty
      Included: 1 year Manufacturer
    • Notifications

      Receive product notifications for this item, and also receive other email-exclusive savings.

    Love this item?

    Save it to a list so you can find it anytime!


    Oops,

    something went wrong.

    Please refresh the page and try again.


    Details

    ITEM#: 18864042

    This iSpring 6-stage reverse osmosis water filter is built around the idea that nothing is more important than clean water. The unique design pushes water through a series of filters and membranes to deliver safe and odor-free water with each glass. The set also comes with a designer faucet, so you can completely upgrade your existing kitchen faucet.

    • Restores natural mineral balance to deliver great tasting mineral water
    • Prevents up to 99 percent of over 1,000 pollutants from entering your water for better health
    • WQA Gold Seal certified for superior performance and quality materials
    • Includes the gradient sediment filter, fine coconut carbon, and 0.0001 micron RO membrane
    • First-stage filter features a 5 micron 10-inch high-capacity polypropylene sediment filter to remove fine particles
    • Second-stage filter features a 5-micron 10-inch granular activated carbon (GAC) filter to remove unpleasant tastes and odors
    • Third-stage filter has a 5-micron 10-inch carbon block filter to remove residual color, tastes and odors
    • Fourth-stage filter has a 0.0001-micron high-rejection TFC reverse osmosis membrane
    • Fifth-stage filter delivers a 1-micron 10-inch total polishing inline carbon filter
    • Sixth-stage filter includes an alkaline pH filter to balance the pH
    • Certified to NSF/ANSI standards
    • Includes the machine head and premium 3.2 gallon pressurized faucet tank
    • Faucet is lead-free with a long goose neck design
    • Food-grade four-color tubing set
    • Set comes with tank valve, feed water adapter, drain saddle, teflon tape, two W wrenches, three spare O-rings, two spare elbow fittings, and user manuals
    • Pre-installed automatic shut-off valve and check valve work together to shut off the system once the tank fills
    • Made from plastic and metal for durability
    • Dimensions: 15 inches wide x 8 inches deep x 18 inches high
    Assembly required

    According to Federal Law Magnuson-Moss Warranty Act (P.L. 93-637) All Appliance manufacturers must be given the opportunity to attempt to repair any of their appliances before it can be returned or exchanged. For more information please click here.



    Assembly Required

    Specs

    Features
    Material Assembly Hardware, Metal, Plastic
    Type Water Filtration System
    Assembly Assembly Required
    Filtration Stages 6
    Primary Filtration Type Reverse Osmosis
    Set Includes 1 Piece
    Dimensions 15 inches wide x 8 inches deep x 18 inches high
    Warranty 1 year Manufacturer
    Model Number RCC7AK
    Country of Origin United States
    • clean good tasting water
      Verified Purchase

      This user earned $5.00 in rewards for writing this review.Learn More

      This was an amazingly easy unit to install. My water is city water that tested at around 280 TDS. After installing the unit it measured at 9 to 11. Pretty incredible filtration. I like the alkaline filter remineralization part. My old RO unit didn't have that and this tastes much better. The brushed nickel water tap is very nicely made. I am very impressed with the unit. Thanks iSpring!

    • Verified Purchase

      I received the item as advertised. Assembly was very easy. I installed the unit in my basement below my kitchen sink to maintain storage. I purchased an extra length of 20ft tubing from ispring which arrived very quickly. Instructions and online videos were very helpful. The unit is really plug and play in terms of it's simplicity to install... No need to be an expert plumber. I tested the water quality pre and post and my pH, alkalinity and TDS were all improved. The water tastes great. I highly recommend this unit for those who require pure water or for those who just no longer trust their municipality. Worth the money.

    • Does it really improved faucet water's Ph ?
      Verified Purchase

      Installation is not hard, however for the Alkaline which is not improving Ph. I measured the Ph 1 day after installation, it's 4 / 7 (Acidic). while I measured the raw water from the home faucet, I got 6 to 6.5 Ph; the filtered water is more acidic than the water faucet.

    • Reverse Osmosis RCC7AK
      Verified Purchase

      This user earned $1.00 in rewards for writing this review.Learn More

      The I-Spring reverse osmosis water filter system is working excellent with no leaks. Installation was not bad except for the faucet. Installing the faucet was a job in itself. My sink is cast iron. After careful measuring the surface of the sink above and below I covered the area with a piece of masking tape. I used the large rubber washer included with the faucet to center the hole were I needed to drill a hole through the sinks top edge. I then marked it with a ink pen. I used a Dremel high speed cutter #121 to center punch the porcelain finish. You can buy a Dremel #121 at any local hardware store. I then used a 7/16" Artu Multi-Bit to drill through the sink. I ran the drill on slow speed as not to over heat the bit. The cast iron was 5/8" thick so it took about a hour or more to drill clean through the sink. After the installation was completed I flushed the system twice. The first start up of the system caused a large amount of waste water but I used it to flush the toilets so the water was not a loss. My concern with the RO water system was the waste water. I have been monitoring the systems output and have found it to be a lower level than expected. Some competitors make a comparison about the waste water and a false statement against the RO water system in general. I have not tested there system but it makes me think maybe there water system is not all its cracked up to be if they are bashing the RO system to gain sales. I am happy with the reverse osmosis water system and would buy again. The faucet included with the I-Springs RO is high quality and look great. The faucet is what sold me on I-Springs. The best part about I-Springs RO is that great tasting water with no smell.

    • Verified Purchase

      iSpring RCC7AK 6-Stage 75 GPD Residential Under-Sink RO Water System with Alkaline Remineralization, WQA Gold Seal Certified is a pretty good product. I installed in my house and it was very easy and straightforward. The purified water has a pretty good taste as of any reverse osmosis system that I have tried. Great product, and I highly recommend this system for trouble free great water. Also, the water alarm was a bonus that helped us ensure no leaks are around.

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      Best water filter EVER. Reverse osmosis and alkaline neutralizer, all the people that come drink my water think this is the top notch, lol one even said woah must of cost like 1000. I love my filter all the way and the dispenser that goes over the sink is just as cute.

    • Glad I bought it.
      Verified Purchase

      I am happy with this purchase. Better than 5 stage system.

    • Verified Purchase

      This is a best buy. We were bringing bottled water for years since moving to California, simply because of strong metallic taste of tap water, which we couldn't get used to. It was a pain to bring / store water bottles every couple of weeks. So after detailed research, we bought iSpring RO under the sink system. We are super satisfied with the taste of water, just feels similar to bottled water. Also it significantly reduced TDS (total dissolved solids) from 600 to 19. You should be comfortable and have worked with plumbing work before to set it up. It comes with detailed step by step instructions and all parts / materials needed for the install. Anyways we asked our handy man to setup for us. It took almost 2 hours to complete setup including installation of all filters, mounting, plumbing, faucet install, etc. I would definitely recommend this to folks who don;t like the taste of tap water plus want to drink much cleaner / purified water.

    • The best tasting water & no need to buy bottled
      Verified Purchase

      This user earned $1.00 in rewards for writing this review.Learn More

      This system was recommended to me by a friend and after installing it and having it running for about three months I couldn't be happier with it. The water is hands down the best I've ever tasted from any source and it's completely eliminated the need to buy bottled water for my wife and I so it will pay for itself in about a year.The system came in a well packaged box and I found everything easily including some spare parts for future use, which I appreciate. Fittings and pipes were included. All I need was the tools (wrench, scissors, etc) and a Teflon sealer that I got from Home Depot. Installation was not hard, but it took me 45-60 minutes because I had to make sure that all fittings were tight and I also labeled the in/out just for future references, steps that most people won't do or not required to get the system up and running. Overall, I am very happy with the quality and most importantly, I have a good, clean and great tasting water again. I will not have any problem recommending this system to anyone.

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      This iSpring filter is easy to install with step by step instructions. Faucet looks great and matched others in our home. Water tastes great, family loves it and we seem to be drinking more water than in the past.

    • Verified Purchase

      I received the item as advertised. Assembly was very easy. I installed the unit in my basement below my kitchen sink to maintain storage. I purchased an extra length of 20ft tubing from ispring which arrived very quickly. Instructions and online videos were very helpful. The unit is really plug and play in terms of it's simplicity to install... No need to be an expert plumber. I tested the water quality pre and post and my pH, alkalinity and TDS were all improved. The water tastes great. I highly recommend this unit for those who require pure water or for those who just no longer trust their municipality. Worth the money.

    • clean good tasting water
      Verified Purchase

      This user earned $5.00 in rewards for writing this review.Learn More

      This was an amazingly easy unit to install. My water is city water that tested at around 280 TDS. After installing the unit it measured at 9 to 11. Pretty incredible filtration. I like the alkaline filter remineralization part. My old RO unit didn't have that and this tastes much better. The brushed nickel water tap is very nicely made. I am very impressed with the unit. Thanks iSpring!

    • Does it really improved faucet water's Ph ?
      Verified Purchase

      Installation is not hard, however for the Alkaline which is not improving Ph. I measured the Ph 1 day after installation, it's 4 / 7 (Acidic). while I measured the raw water from the home faucet, I got 6 to 6.5 Ph; the filtered water is more acidic than the water faucet.

    • Verified Purchase

      This user earned $1.00 in rewards for writing this review.Learn More

      Finally decent water, no more leg cramps or headaches. We had bad water(Nashville TN)hard as a rock straight from the Cumberland river(downstream dump from the north). Over 500 ppm initially now less then 20 ppm and 0ppm added to our Brita. Tasted so good.

    • Verified Purchase

      So far working good. No complaints. The water taste is awesome. It has completely removed the hardness and resulting water is extremely soft. Overall a great product for the price.

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      Easy to install with good directions that could be a bit confusing since it explains installation of multiple systems on one sheet. Love the extra faucet and the holding tank. I no longer buy water bottles and water tastes delicious!

      This user was entered into a sweepstakes after submitting their honest review.

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      Installation was straightforward but did take us a couple hours because we are new to this type of thing. We had a minor leak but it was our fault and we fixed it easily. Now the system is working perfectly and we LOVE the taste of the water and feel good about our family having this amazing water. iSpring is truly a great company and everything they do is quality... I really appreciated all the little nice touches like the directions being printed on nice paper and in color etc

    • Verified Purchase

      This is a best buy. We were bringing bottled water for years since moving to California, simply because of strong metallic taste of tap water, which we couldn't get used to. It was a pain to bring / store water bottles every couple of weeks. So after detailed research, we bought iSpring RO under the sink system. We are super satisfied with the taste of water, just feels similar to bottled water. Also it significantly reduced TDS (total dissolved solids) from 600 to 19. You should be comfortable and have worked with plumbing work before to set it up. It comes with detailed step by step instructions and all parts / materials needed for the install. Anyways we asked our handy man to setup for us. It took almost 2 hours to complete setup including installation of all filters, mounting, plumbing, faucet install, etc. I would definitely recommend this to folks who don;t like the taste of tap water plus want to drink much cleaner / purified water.

    • Verified Purchase

      The filter is easy to install if you have a drilled a hole on the granite shelf near the sink. The water is very tasty.

    • Verified Purchase

      This is a great unit. Have had in use for over a year and it works as described.

    • Verified Purchase

      This user earned $1.00 in rewards for writing this review.Learn More

      Purchased this for our house to hook up to our fridge and our water was perfect! Tasted great! We sold our house and the system went with it but we plan on purchasing another one for the new place. You can just taste a difference in the water. Filters were easy to replace.

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      One of the best investments I have made as far as home as well as life upgrades - recommended to anyone even people who have decent city water - the chlorine is bad for you!

    • Verified Purchase

      This user earned $2.00 in rewards for writing this review.Learn More

      We have the worst water in the world.. this system is worth its weight in gold. The smell is gone and the water is now drinkable. Very easy setup, took about twenty minutes. Should have bought a lot sooner.

    Questions & Answers

    • Q:

      "What is the PH of this water after being filtered?"

      Have an Answer? Be the first to answer this question!
    • Q:

      "Can you use this product in a mobile home?"

      • A:

        Should work perfectly as long as you have at least 40 pounds of water pressure, which it needs to get the water through the RO membrane (the main filter). You do have to tie into your cold water pipe so make sure you have access. It has a fitting that works for either 3/8" or 1/2". The filters and tank do take up some room so be sure you have a place for it either under your sink or other area. Like others have said, it produces great tasting water. I'm 100% happy with it. Fairly easy to install if you're somewhat handy.

    • Q:

      "Why did you choose this product?"

      • A:

        Seems to fit what I was looking for in all aspects

      • A:

        I live in a area with hard water. I was advised not to drink the tap water nor use the ice. I also have a medical condition that requires strict PH balance in my body and healthy water, not even a small glass of poor water as it will make me very ill-

      • A:

        Want clean water.

      Read more Read less
    • Q:

      "Anyone know how much it costs to replace the filters and how often? I see it's been asked before with no answer."

      • A:

        I'm not sure of the price, but the first three stages should be replaced every 6 months, The RO filter states every two years. Bottom line is it depends on the quality of the water that you introduce into the system. For example, I have very hard water with a lot of sand, so I expect to replace my particulate filters every 4 months and the RO filter every 18 months. But this is what I would consider, not really a worst case, but my domestic water supply isn't the best. I'm not sure about the costs but you should be able to go to the manufacturer's web site or you can look it up on overstock. Without chemically testing the water you can drain the storage and check the flow rate.

      • A:

        The frequency depends on the source water quality and water usage. Normally for RCC7AK(6 stage alkaline system) the first 3 pre-filters(F3) and the sixth stage-Alkaline filter (FA15) need to be replaced every 6-12 months, or sooner if water flow becomes slow. The fourth stage- RO membrane (MC7) needs to be replaced every 2-3 years or sooner if the TDS level starts increasing. The stage 5- Carbon block filter (FT15) needs to be replaced every 12 months. You may search for iSpring Filters on Overstock to see the prices of the filter packs. Filter replacement is very easy. Simply put, you only need to 1)shut off the water supply 2) twist off the housing cap 3) replace the old filter with the new one. 4) twist back on the housing cap. 5) Reconnect water. For replacement details, please refer to the user manual included in the package.

      Read more Read less

    Shopping Tips & Inspiration

    Shipping & Returns

    Contact Information

    Shipping:

    Usually leaves our warehouse in 1-2 business days. *

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
    Standard shipping details
    Expedited shipping details

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. For the return policy on a Marketplace item, please refer to the Seller’s individual policy, located on the product page by clicking on the Seller name. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.