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SimPure Tankless UV Reverse Osmosis System, NSF/ANSI 58 Certified, RO Water Filter System Under Sink 400GPD, 8 Stage Water Filtration, Near 0 TDS, BPA Free, 1.5:1 Pure to Drain, Built-in Pump T1-400UV

  • Based on 285 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Saturday, May 18
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Style: T1-400UV


Features

  • SGS CERTIFIED and TESTED - Meets the NSF/ANSI 58 Standard. The SimPure ROULP-3012-400-T1 has been verified and tested by SGS and meets the NSF/ANSI 58 Standard. This ensures its exceptional quality and performance. It effectively removes over 99.99% of 1000+ contaminants, such as viruses, bacteria, microplastics, chemicals(PFOA/PFOS), heavy metals (lead and arsenic), TDS(nitrates and nitrites), chloride, fluoride, etc. Enjoy purified drinking water with confidence.
  • PURE WATER NEAR 0 TDS - The water filter system utilizes exclusive technology to achieve near 0 TDS (Total Dissolved Solids), making it one of the most effective RO water purifier systems. It is designed to efficiently reduce TDS levels in tap water, even with initial levels as high as 200-500 PPM, to near 0 PPM or below 25 PPM. With a TDS removal rate of up to 95% and a maximum rate of 99.99%, you can trust that T1-400UV will provide you with the cleanest and purest drinking water possible.
  • UV STERILIZER & TANKLESS DESIGN - Our UV sterilization system eliminates bacteria, algae, and other microorganisms from your tap water with an impressive removal rate of over 99.99%. It operates automatically based on water flow pressure and can be easily adjusted. The tankless design ensures fresh and clean water, while also saving valuable under-sink space and preventing secondary contamination.
  • 400 GPD & 1.5:1 PURE to DRAIN - The SimPure tankless RO system can produce up to 400 gallons per day of pure water. With a remarkable 1.5:1 pure-to-drain ratio, it minimizes wastage by only producing 1 gallon of wastewater for every 1.5 gallons of pure water. Experience superior efficiency and eco-friendliness compared to traditional RO systems.
  • SERVING USA SINCE 2006 - Seattle, WA USA, SimPure is dedicated to providing world-class quality water filtration solutions. If you are not satisfied with your purchase, then we want to hear from you. Please contact our trained water specialists. And is available to answer any questions during the life of the product. (Please scroll down for replacement filter purchase options).

Product Dimensions ‏ : ‎ 16 x 9 x 18 inches; 17.75 Pounds


Item model number ‏ : ‎ T1-400UV


Date First Available ‏ : ‎ May 12, 2022


Manufacturer ‏ : ‎ SimPure


Best Sellers Rank: #25,324 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #49 in Under-Sink & Countertop Filtration


#49 in Under-Sink & Countertop Filtration:


Customer Reviews: 4.5 4.5 out of 5 stars 285 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • So Glad I Went With This - Easy Install
Style: T1-400UV
I have a very expensive 6 component tank RO system for my kitchen, and for years I've been schlepping a big jug of that water upstairs to my bathroom off the master bedroom. For some reason I saw this unit and realized it would work perfectly in the small space I have under the 2 sink vanity of that bathroom. I installed it myself yesterday (70 y.o. DIY woman, 2 hours, including drilling thru marble tile), and it's working perfectly. And the taste is every bit as good as the water from the RO system that cost maybe 4 times as much. AND the rate of water flow is probably even better. The sound of the pump is minimal, and is only on for a brief moment as I fill the glass - then it's silent. It's very much like upgrading from a tank water heater to a tankless model. So much more efficient, without ever worrying about running out of water. As others have mentioned, I too needed to ream out the back of the saddle for the drain tube to fit the 1/4" tubing. This is a gentle maneuver - so don't get too aggressive with it. When I first powered it on, I had one filter canister leak. I turned it off and removed it. I took a little fingertip amount of some Vaseline that was handy (I was, after all in the bathroom), smeared it on the two rubber gaskets at the top of the canister - reinstalled it - and the leak was totally resolved. Easy. I'm now thinking that when my fancy RO unit needs updating at some point, I might switch it out with one of these. I had just replaced the filters on that one, and the filter replacement was so much more involved. The filters on this SimPure are very cleverly made. (Though I do have a bit of a concern that they are so proprietary to their model. What if the company folds?). I love the fact that the ratio of waste water to good water is so efficient. My other system wastes about 3 gallons of water for every gallon of good water it produces. This tankless unit wastes about 2/3rds of a gallon (10.5 cups) for each good gallon. ... show more
Reviewed in the United States on July 18, 2023 by M. Rosen

  • Update: Water shutoff assembly washer replaced with a Hose Bib packing washer.
Style: T1-400UV
See Update Below Original Review: Why is there no option to ask questions about this product like there is for most other products on Amazon? So I have to ask my question in a review because their customer service rep said to just not use a gasket, which we know is going to cause major leaking. The Sim Purewater water valve assembly will not seal to our under sink cold water shutoff with the provided gasket. Gasket collapses when nut is tightened and falls into the hole, because the assembly nut bottoms off on our shutoff valve before the nut can make a seal. Our cold water shut-off shank is too short for the Sim Pure valve assembly. If there was a thicker gasket, or a thinner water valve nut on the assembly, it might work. The gaskets are not compatible with our Shark shut-off valve nor the other two valve brands we have in the shop. Anyone have a solution? Update 6/14/23: We removed the thicker and more rigid packing washer from a new hose bib assembly that we had on hand and installed it in the SIM Pure water valve assembly in place of the thin, flimsy washer gasket that came with it. This worked perfectly to seal the Sim pure water valve assembly onto our cold water shut off valve under the sink. Additionally, the directions state and show to push the Sim water dishcharge tube all the way into the sink drainage pipe; however, the assembly that attaches this tube to the sink drain pipe does not allow the Sim tube to go through the assembly into the pipe (it will only snap into the Sim attachment assembly,) so we had to drill out the assembly hole to make it large enough for the Sim discharge tube to pass through into the sink drain pipe. Just don’t drill all the way into the “snap in” tube receiver on the opposite side of the assembly. Another reviewer pointed this out (thank you.) If you are not super handy around the house, have not regularly done other plumbing projects around the house successfully, and are not a patient problem-solver, we highly recommend that you choose a different system to purchase or that you hire a plumber. We found the technical help available by phone with Sim Pure to be useless. This install was very frustrating and we almost returned the product. However, once installed, we are extremely happy with the system. It is space saving, quieter than expected, the water flow is excellent and much faster than expected, and the drinking water is crisp and delicious. We only needed to do a water flush for 20 minutes and the water smelled and tasted great. However, we do already have a 3-stage whole house filtering system plus a water conditioner where the water comes into the house from the well. Rated four stars instead of five for faulty engineering parts making the install very frustrating and the lack of adequate help via the Sim Pure help line. ... show more
Reviewed in the United States on June 12, 2023 by JJ

  • water tastes great, measures 0 ppm
Style: T1-400UV
water tastes great, was easy to install because it replaced an existing filter. Word of warning: DO NOT connect the waste water tube directly to your sink's drain pipe as instructed in the manual. If you do, you provide a path from your filter directly to the sewer that molds and fungus and bacteria will use to infect and grow inside your system. Use an air gap device instead. ... show more
Reviewed in the United States on September 26, 2023 by compdoc

  • GREAT FOR HYDROPONICS!
Style: T1-400UV
I've tried a few RO systems that are specifically made for hydroponics, and they're okay at best. This SimPure system was very easy to install, has a very high flow rate, and my TDS has been zero ppm for a month running now. The included faucet kit was not needed, as I simply run it into a holding tank with a float valve for automatic shutoff. Don't be fooled by the "less expensive" RO systems out there. This one is just a bit more, but sooo worth it! Changing the filters couldn't be easier, and the system is super low maintenance. As I have lower (municipal) water pressure (30 psi), the added booster pump makes this a no-brainer. LOVE this system, and my plants do too! ... show more
Reviewed in the United States on August 22, 2023 by Hydro K

  • Water tastes great!
Style: T1-400UV
System is nice and quiet. Water tastes just as, if not better than the bottles service we were receiving at $90 a month with the bulky water dispensing unit. Really happy with the small footprint it occupies as well.
Reviewed in the United States on September 27, 2023 by Brian D.

  • Great RO system
Style: T1-400UV
Pretty easy to install. I did it myself (a 43/F with minimal diy experience). My water tastes great. The faucet looks good with my existing kitchen hardware.
Reviewed in the United States on September 28, 2023 by MButtitta

  • Yes!
Style: T1-400UV
I love having fresh clean water! Fit nicely under the sink. Forgot there was electricity involved so that took a little bit of figuring but absolutely love it!
Reviewed in the United States on September 23, 2023 by Video junkie

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