Does what it's supposed to. I was a little Leary as they claim this filter removes chloramine but to my surprise it actually does! Tested for it twice and never registered any.

Unit showed up with 2 broken connectors. Nothing that a trip to home Depot didn't fix, but it was easy to set up and produced over a gallon of ro di water in 10 minutes. Only reason for not giving 5 stars is the broken connectors.

I have had this system for a few weeks now and have filtered over 50 gallons of water. TDS went from 210-220 from the tap to 0 on everything I have filtered so far.

We upgraded to this unit. And we love it. The filters lasted six months. Our water is awful. But this filter took it down to 3 on the TDS meter. Easy to install, and change filters. Even mounting brackets are good.

Received about a month ago. Spent a little time making sure all the fittings were tight and had to stop and re-tighten in a few places before I could say it was "leak free". Once I got it to this point, it has not leaked.

I bought a top-off float, and I have been able to verify that if the float is up the unit stops making water. I don't have it hooked up to a permanent water supply; I turn the water off when I am not using it or if I am not home so I am not 100% sure the float will do its job to stop the water -- I can only expect that it will -- but the ASOV does work if I manually lift the float. I did spring a leak where one hose blew, but I'm sure I didn't have it seated correctly. You MUST be sure to push the tubing in twice and make sure it is seated correctly. Giving a little tug should let you know you've got it right. Once I put the tubing back in, I have not seen another leak in almost a month.

Water coming out is at zero TDS. Can't beat that. My only complaint with this unit is, if you download the PDFs from the manufacturer, both the "general" hookup pamphlet and the AR-122 pamphlet are set up to be one page, so it is very difficult to print, and it is even difficult to read on a laptop. Otherwise, it's a great unit and an excellent value for the money. I would recommend this to anyone who is looking at 6-stage RO/DI units and not willing to pay $300+ (like me).

Great quality and supplies are always available. I would not have needed to purchase this one, except the 7 year old one from them that I owned froze and broke all the plastic housings. keep an eye on the DI resin to know when to change that and watch the prefilter as that will give you an idea on the recommended change dates as everyone water is different and filters may not last the full recommended change by date.