SimPure T1-100 Reverse Osmosis Water Filter, Near 0 TDS Reverse Osmosis System 7 Stage, NSF/ANSI 58 Certified, Under Sink RO Water Filtration System 100 GPD with Tank, Build in Pump, BPA Free

This R/O system is fantastic. I've had an installed over 5 systems over the years and this is probably the best due to the ease with which you can change the filters. They fit tight, no leaks, and you can even change the filters with not even a drop of water spilled -- wow! However, do NOT buy the one with the Alkaline filter at the end. Get the T33 post carbon filter instead of the Alkaline filter. And here's why: At least for me, the Alkaline filter made the Ph too high. I tested this with a digital water testing unit. My tap water was 9 ph, but with the alkaline filter I was getting 10.5 ph out of this R/O unit. Also, TDS was 200 from tap and 70 after r/o with the alkaline filter. But after I switched the alkaline filter out for the T33 post carbon filter, my TDS went to 0 (ZERO) and my ph dropped to 8, which is the perfect ph for drinking water. Why this is so important: A ph over 10 in drinking water can cause digestive problems and loose stool. I found this was true for me. So make sure you're drinking water with a ph below 9.5. And this R/O system with the T33 filter produces absolutely perfect drinking water. Just don't get the alkaline filter, unless you plan to test your ph afterwards. It's possible that my tap Ph is just slightly high to begin with and that's why the alkaline filter over did it. Your tap water might be different. My tap water is from the municipal city water of a major city, not a well. The tap water is high quality already. So if you get the alkaline filter, just be sure you test your ph level after it's installed to ensure it's not too high. Otherwise, just get the T33 post carbon filter and you'll be perfect.

Very good RO system and its not my first. Exceptionally great tasting water even if your municipal or well water is turbid and terrible. Flow rate is very good and recovery time is very short. Very Easy to install if you have simple handy skills especially if you watch their very helpful how to video. Anyone really can do it.

This system was easy to install, and really does a good job filtering the water. The PPM was 2 when installed - the PPM going in is 675. However, the flow rate is super low, which is a problem, and there is no way to tell when you need to change which filter.

Good customer support is willing to address my questions and easy installation by using pex crimping tool for connecting house water system.

works very well I am very happy with the product

This is supposed to be the newer version system, and only had free product reviews, I took a chance and bought it, the older system did not include a pressure tank and I thought that would have been better, less crap under the sink, but it was a lot more money than this one with a tank, which makes no sense, more parts but cheaper? Anyway it installed super easy with everything included, took maybe an hour. I bought a water tester to test before and after and it made my well water very clean and it even tastes good with the alkaline tank. The bad news is the tiny pressure tank (1.5 gallon) included is useless, way too small, and the pressure is crap when it goes low, which is very fast, the pump does not pump the water fast like you would expect, so I decided to buy a 4 gallon tank, and it made a world of difference, the water flows nice and for plenty of time, bottom line be ready to upgrade the pressure tank if you buy this, oh and on course it went on sale right after mine shipped.

Pump doesn’t produce much pressure

Works well. Brings water from 360ppm to 37-48ppmKinda waves a little but I’m sure it’s the water hardness that waves before it gets to the filters.Will use the same filters when I run through 580 gallons. 💙