7-Stage 100 GPD Under-Sink Reverse Osmosis Drinking Water Filtration System with Booster Pump, Alkaline Filter and UV

This is a miniature version of what I used on the Big Island where I was on water catchment. I am very pleased with the quality of my "city" water now. Shout out to Sean for helping with registration.

I installed the system myself without any difficulties. The instructions walk you through the process step by step. I had zero issues or.leaks and the system started up flawlessly and is producing very high quality water. I did have one question so I called iSpring Water Systems and spoke with Nick. He was very professional and polite, and helped me out and then some. Would not hesitate for a second to purchase additional systems and/or parts and filters in the future. Highly recommend!!

We bought this product a couple of months ago. The installation was fairly easy and the instructions were helpful. When we thought there was a problem with the uv light and/or the uv ballast, we started corresponding with iSpring in the USA. To make a long story short, they were very helpful at troubleshooting and were quick to back their product and sent replacement parts promptly. The kicker is that after numerous attempts to make the UV system work properly, we discovered that we had an electrical fault at the plug we were using and there was nothing wrong with the product to begin with! Since the electrical problem was fixed, the water filtration system works beautifully. If you're worried about ordering an online only product like this because you think you won't have descent warrantee service, don't be dissolutioned. I've never in all me years had a company back their product warrantee with such friendly correspondence and commitment to resolving an issue that wasn't even their doing. I'm impressed to say the least. We've since offered to reimburse them for their losses caused by our faulty wiring and are waiting for a response. As for the water quality this unit provides, it's very good. The water is perfect. It works quietly and efficiently. Thank you.

The iSpring 7-Stage RCC1UP-AK RO system, with Ultraviolet (UV) light works exceptionally well. Any questions I had were quick and comprehensively addressed by iSpring Support. Kudos to Don and Nick in Support.  They are very quick to respond and provide complete answers. The system installs with basic tools and very basic understanding of putting things together.  In comparison to other name brand products, this unit is a great value for the money. The documentation needs a few minor updates, which the Support team notated. I tested the water and found my unit to filter to specifications. I thoroughly evaluated competing products. I've also had high-end RO systems from other manufacturers in the past. I am selective on my water filtration products. The products from iSpring are available through several online and retail stores.  I highly recommend iSpring. MarkMyrtle Beach, SC

This is the best water filtration system that you can obtain, and technical support from the company is great. Francis helped me with the registration and with obtaining some additional tubing that I required for the leak stop valve. I ordered the RCC1UP-AK online from Home Depot Canada. The system was shipped directly from the manufacturer a day after the order was placed. Everything is provided in the box to filter water using (1) an initial three-stage filtration process; (2) a reverse osmosis (RO) stage; (3) a post-RO filter; (4) an alkaline remineralization filter that ensures the water has a good taste; and (5) a UV water filtration system to deactivate any bacteria and viruses. Documentation is provided and should be thoroughly read before assembly. The company also provides You Tube videos that demonstrate how to assemble the system. Also, the company can be contacted via e-mail for any questions. Prerequisites: (1) Two AC receptacles (NEMA 5-15R) under the sink. For safety, a GFCI should be present. To ensure that the installation coincides with electrical code, do not use an extension cord. (2) If there is not space under the sink, the unit could be placed in a basement and water brought up to the faucet using a potable water pump. The potable water pump and tubing is not provided in the kit. (3) A water supply line under the sink and a drain. Adapters are provided for the water supply line and the system requires the installation of a saddle drain. You will have to drill a hole into the drain pipe. (4) A hole for the water facuet. The hole can be drilled in the countertop, but many kitchen sinks already have a hole built in. If you have to drill a hole in a countertop, exercise caution - this can be challenging. A bracket is provided in the kit for installation if you would like to place the water faucet on a wall or other surface without drilling a hole. My kitchen sink already had a hole for a water faucet. Installation: (1) The installation is relatively easy if you read the manual. Make sure that you read the manual and also watch the You Tube installation videos. Keep a tablet nearby during the installation so that you can watch the videos. (2) Match the colored tubing to the colors on the system connectors. Black is the drain, red is the water input line, yellow is connected to the water tank, blue is connected to the faucet. (3) Mate the tubing to the connectors as instructed in the manual and as demonstrated in the online videos. (4) The saddle drain requires a hole to be drilled in the kitchen drain pipe. If the saddle drain does not fit on the pipe, you will have to purchase larger bolts for the saddle drain. I found that 1/4"-20 bolts with a length of 3 inches worked well for a 1-1/2" kitchen drain pipe. (5) Drill the saddle drain hole into a horizontal section of kitchen drain pipe. The system is relatively quiet during operation, but a dripping sound may occur if the hole for the saddle drain is placed into a vertical section of pipe. The hole should be drilled closer to the top of the horizontal section of pipe. (6) Before placing the system under the sink, set up the filters and the tank on a nearby table. You will need PVC plumber's tape to mate a connector with the metal threads on the top of the tank. There is a vent on the side of the tank that is not used. A black plastic holder needs to be removed from the metal connector before the tank is used. The holder is apparenty designed to act as a cradle for the tank, but I did not use it since the tank already has built-in feet. (7) Install the system first under the sink, and then install the iSpring leak stop valve. The iSpring leak stop valve (provided in the kit) will turn off the water if there is a leak and will have to be replaced if any water contacts the valve. An installation video is available on You Tube, and additional red tubing might be required. I contacted iSpring and Francis set up an order to send me the additional tubing (at no additional cost). That is great! (8) After inserting new first-stage filters, the filters should be flushed. Disconnect the red tubing from the reverse osmosis stage, close the tank valve, and run water through the first three filters until the water is clear. Then, re-connect the red tubing to the reverse osmosis stage and open the tank valve. Open the kitchen faucet and run the water through the system until the tank is empty. The tank will become empty when the water flowing through the faucet slows to a trickle. (9) The red tubing might have to be taken from the back of the assembly to the front when flushing the first three filters. (10) As per the You Tube videos, ensure that the filters are inserted in order. Also, it is easier to mate the filters first with the system before mating the containers with the threads. The reverse osmosis filter will have to be pushed into the filter holder to ensure that the O-rings on one end of the filter form a seal. This part of the installation process should be clear from the You Tube videos. (11) The AC power should not be turned off and should run continually. Post-Install: (1) Filters and the UV bulb will have to be replaced every six months to a year. A kit is available from Home Depot. You can set an electronic calendar reminder to do this, or mark a paper calendar. Stickers are also available in the kit. (2) The water tastes great! (3) A TDS (total dissolved solids) tester should be obtained from iSpring or another manufacturer to ensure that the ppm values of the water remain low (as expected). (4) Feel free to label the valves as shown in the pictures to ensure that the close and open directions are known. (5) As instructed in the manual, the water supply valve should be turned off if the system will not be used for some time. Final verdict: A wonderful system that purifies water using filters, reverse osmosis and UV light.

We had the iSpring professionally installed under our sink in a pretty tight space. Our 7-stage filter fit and runs like a top. We love the taste of our "New" water. Even though our city water is allegedly clean, this new quality of water looks, feels and tastes (No taste) even better. It's quiet, and efficient. We love knowing that it's there simply doing it's "Civic Duty". After almost two (2) years, we really rely on it for our everyday drinking and cooking water. It's even better than we expected it to be. When we wanted to do our periodical maintenance/changing filters under the sink and needed some guidance, we contacted iSpring directly. Our contact person there, Adam, proved to be extremely helpful and informative. It was nice to have a good experience from a Customer Service person who knows, understands and is able to assist with on-site product issues. Thanks iSpring!

I've been researching various filtration systems, and iSpring's 7 Stage was by far the best functioning system that also has very fair priced filters. Setup was fast and easy, I opted for a basement install and ran 5 feet of line up to the tap in the kitchen which worked out great. I also ran a total dissolved solids test after the intial purge to see exactly what my numbers were like, here's the results: -Tap water (City of Oshawa) came in at 175ppm -Hot water for giggles came in at 250ppm -iSpring RO water came in at 20ppm, and no doubt would be single digits but the ALK filter adds back essential minerals. I've since tested periodically and it's still functioning perfectly. I really liked how the UVC light is turned on via a flow switch, most systems kept this bulb running constantly, which not only massively reduces it's usable life, but also makes your water warm or even hot coming out of the tap lol. I used a sharkbite copper T fitting to adapt to the 1/4 flex piping for the supply line with a shutoff built in and made sure to use a brass insert on the flex pipe end, you could of course just opt to use the included fitting to adapt directly to your under-sink water supply between the tap flex hoses. The booster pump is very quiet and barely noticible when in operation, and waste water from the RO membrane is minimal at best, and not even an issue. Any issues or questions I've had were dealt with instantly and professionally directly from iSpring and they really live up to their reputation, my whole family is happy with the purchase and we feel much better knowing that if the City drops the ball with filtration or testing (the water usually smells like garbage in the hot summer) not to mention who knows what's going on in the pipes between the water stations and your home, we are covered.

We install the RCC1UP-AK to our new kitchen and refrigerator , water taste is amazing. We recommend this product.

Bought this system in February, love it! Easy to install, excellent quality water, and fits nicely under the sink! Worth the money for sure!

I used to buy packs of bottled water for my family for long time, but then we decided to try iSpring water filtration system and it’s a life changer, I must tell you! Water is pure and tastes great! It has less amount of dissolved solids in it than bottled water. I can use it now not only for drinking, but also for cooking! It’s a great investment for you and your family! My husband installed the filtration system himself just following the instructions on youtube. I would highly recommend this product to anyone who cares about his health! P.S. Thank you, Nick, for great customer service!