SimPure T1-400ALK Alkaline UV Reverse Osmosis System, NSF/ANSI 58 Certified, Tankless RO Water Filter System 400 GPD, pH+ Remineralization Water Filtration Under Sink, BPA Free, Built-in Pump

I’ve been using this system for a little while now and overall I’m really happy with it. The water quality is the biggest win. It tastes clean and crisp and way better than what I was getting before. No weird smell or aftertaste, which was important to me. Installation wasn’t too bad and it fit under my sink without a problem. Everything feels pretty solid once it’s set up. The only downside is the flow is a little slow. It’s not a deal-breaker, but if you’re filling up something big you’ll notice it takes a bit longer than expected. For normal use like drinking water or cooking, it’s fine. Customer service was also really good. I had a couple questions during setup and they were quick to respond and actually helpful. For the price, I think it’s definitely worth it. If you don’t mind slightly slower flow, it’s a solid system.

After one week of use, I’d like to share my experience and explain why I chose this particular reverse osmosis system over others. There were two main reasons for my decision: 1. Filter flexibility (ALK to T33 option). This model allows you to replace the Alkaline (ALK) filter with a T33 carbon filter if needed. I wasn’t completely sure whether I would prefer alkaline water long term. With this system, I can simply swap one filter and get 0 ppm water if I choose. That flexibility was very important to me. 2. NSF certification. This system has internationally recognized NSF certification, which can be easily verified on the official NSF website. Unlike some brands that only pay for one-time testing, this certification provides ongoing credibility. For me, that really matters when it comes to water quality and safety. Packaging & Installation: Everything arrived well packaged and protected. The box includes many additional fittings for different installation scenarios — various tubing sizes and even the option to connect the system to a refrigerator. The instructions are clear and detailed. Installation took about 1.5 hours. The most difficult part was drilling a hole in the countertop for the faucet. I had to buy a diamond drill bit for that. My advice: buy a good-quality bit and watch a YouTube tutorial before drilling. I was surprised to learn that: 1. You need to keep the drill bit wet while drilling. 2. You should start drilling at a 45-degree angle. The unit itself is compact and doesn’t take much space under the sink. Water Quality Results Before installation, my tap water measured 176 ppm. After installation, it measured 70 ppm, because the ALK filter adds beneficial minerals back into the water. After one week, I performed a 14-parameter water test with the following results: Hardness: 50 Chlorine: 0 Iron: 0 Copper: 0 Nitrate: 0 Nitrite: 0 Calcium: 0 Total Chlorine: 0 Fluoride: 0 Alkalinity: 40 Carbonate: 180 pH: 7.5 Lead: 0 Bacteria: 0 Overall, the results are very reassuring. What I Would Improve I would like to see better filter replacement indicators. The current system for tracking filter life is not very informative. A clearer indicator or built-in reminder would improve the user experience. Overall Impression I am satisfied with this purchase. We drink this water daily, cook with it, and wash food with it. So far, the system performs as expected and gives me confidence in our water quality.

The unit work great. The water is clear with no Ded taste. It was very easy to install. Following the provided instructions made the installation quick and easy. However, it is very important to follow instructions exactly to endure proper installation.

This would get a 5 Star review, if the O Rings on the filters weren't all damaged! The installation went smoothly, for the most part. We had one small leak, caused by human error, which was an easy fix, but we had a flood of water, from all 4 filters, because all 4 filters had bad O Rings. And it wasn't a quick find. The water sprayed out everywhere, and made it difficult to figure out what was happening. It was quite a mess! That was manufacture error. Every ring at the top caused each filter to leak. Luckily they gave us 4 spare rings, and once we replaced them, the leaks stopped. So much for spare rings. Hopefully the next batch of filters don't come with damaged O Rings? Other then that, I love this system! It takes up a small amount of space, under the sink. It runs very quietly, and the water taste exactly as it should, like nothing!!! I have very bad water...high sulfur content, and very hard water. I have to run two systems in the basement, one is salt, and the other is chlorine, just so I can shower & do laundry. Brushing my teeth, is no pic nic. Yuck! My drinking water was filtered by a zerowater system, but i still tasted the sulfur, so I also had to use a zerowater filter bottle, just so I could drink it. I refuse to drink bottled water. Save our planet, and all that. This new system filters it completely, and the water taste amazing! I am beyond thrilled that I requested this for my birthday! Happy Birthday, to me!!! A gift for everyone, really! Hopefully the manufacturer process for the O Rings improves?!

The Best Tasting Warter Ever. The only Water filter System you will ever need. After years of using a standard carbon block system, I finally made the switch—and I’m never looking back. This is hands-down the best water filtration system you will ever need. The water is incredibly pure and tastes almost like high-quality mineral water. There is honestly no comparison to anything else available. Plus, the installation was very simple, and the filtration-to-waste ratio is excellent. It is very affordable and has low cost of replacement filters. System perfectly fit under my sink and it took me about 30 min to install. Highly recommended!

Je l’es depuis plusieurs mois et satisfait j’ai installer des lecteurs de ppm entre tout les filtres et je soupçonne seulement le premier de faire une moin bon travaille a moin que mes lecteurs manque de précision je vais revenir plus tard ici a

Just installed it with my husband yesterday. Was not complicated to hook up at all. We didn’t have enough space under our sink so we just used the cabinet next to it and ran the lines through a hole. We had zero issues with the install it was fairly easy with two people. I bought a water tester and the water tested successfully at 0 PPM after I ran it for half an hour as the instructions said. I checked the tap water too just to make sure my device was working and it tested at 36 PPM. The pump is extremely quiet in my opinion, with kids in the house I don’t even notice it unless I open the cabinet door intently. The side faucet it comes with it nice looking and slender. Overall I’m very happy so far with it and I’ll have to continue to test the PPM as the filters age, the little device is only $10 its probably worth getting for maintenance purposes.

My husband and I have been drinking RO water for over 40 years and just recently moved into a house that we could put in a unit under the sink. This unit is absolutely wonderful and easy to use.

I am definitely not used to the taste of the water and water measurements are harder to do with this system as it is adding minerals back into the water. (Tempted to order that post carbon filter as I hear others have contemplated this to get closer to a 0 PPM reading). Also, one BIG issue I found with this system was that the spout was NOT deep enough a length for my countertop... luckily I was replacing an older system so I used that spout. It should come with an extension at least. Other notes... it's not noisy per say but pump does make noise. Filters and hardware are straightforward enough for most DIY'rs. Pressure gauge display is a nice touch.

If you are thinking of buying one I would! It seems to work very well and the few issues I had were taken care of by the best customer service I have had in years. Anything wrong new replacement parts are shipped immediately without question .... truly excellent!