Premium 5-Stage Reverse Osmosis Filtration Home System for Clean and Healthy Drinking Water Filter System 75 GPD, RO Water Filter System Under Sink & Designer Faucet - Easy INSTALATION

Works pretty good so far.And the water tastes super clean. It tastes as clean as the Reverse Osmosis filtered water from the supermarket.Everything was pretty easy to install with the quick connect fittings. There are 4 hoses in total, and all the hoses are color coded, so you could tell which hose goes where.If you don't already have a spot where you can stick the drain-hose, then you will need a drill to connect the drain-hose to the drain pipe.The valve for the tank was leaking, and when I tried to tighten it, the valve broke. So I highly recommend getting some Teflon tape, and don't over-tighten it.I had to go to Home Depot to find another 3/8 valve with a quick connect fitting, which cost me 15 dollars.The tank valve leaking, and breaking was my own fault for not using Teflon tape, and over-tightening it.Also the washer for the water spigot was too small for the hose opening on my sink. So you're going to need a big washer. I just used the old fittings from my old sink-hose.When you turn the system on DO NOT OPEN THE R.O. FLUSH VALVE AT THE TOP OF THE FILTER HOUSING!!!!I thought the valve at the top of the filter housing was to turn the system on, but no, it's to flush the R.O. Membrane/filter.It doesn't say it anywhere in the manual, and I had to learn about it from reading the comments.I would give this system 5 stars if it wasn't for the washer for the spigot being the wrong size, and nothing in the instruction manual telling you about the R.O. Flush Valve.Overall, I give this product a 4 out of 5.++++++ UPDATEI've had this unit for 16 months and it is still going strong. I use it almost every single day.Changed the filters twice, and still have extra filters for the next six months. 30 dollars for a year's worth of filters for 2ppm water is a great value in my opinion. And still no leaks or malfunctions.Worth it. 10 out of 10.Also if the unit is making noise, it's from the vibration from the hoses being kinked. Just straighten them out, and you will be fine...

this thing is great. I got it because in my area the water quality is not great. High ppm, very acidic. not good tasting, although it's better than some other places around here. for the price this RO filter is not a bad choice at all. I was reletively easy to set up. easier if you have a basic knowledge of plumbing. And it works great. My plain tap water has a pH of around 8.5 or something crazy like that. after it runs through this filter it comes out at 7.0 pH every time and it is crystal clear and tastes great. I was skeptical before i bought it because a some reviews said that the tank fills very slowly but mine works just fine. It seems like it holds more than a gallon though. I can fill about 2 gallon jugs with one full tank before i start to lose preasure. Thats way better than I expected. Highly reccomend this for clean drinking water or if you have household plants that are picky with pH and/or ppm. I will update if i have any problems but I have had it for about 2 or so months now with zero issues. none of the connections leak, nothing. works better than described.

Update 05/02/2020 - can I give this less than one star? I finally got this system to work after replacing almost the entire system with parts from a Premier water filtration company. The bugs aren't completely worked out however. On the most recent filter change I noticed that the bottoms of the filter housings are cracking. Those are typically supposed to be replaced every five years. These made it three years and I'm not confident they will make it another six months before rupturing and flooding my kitchen. Steer clear of this water filter system.I owned and operated a similar system for many years with no trouble. This one has had issues from the initial installation. The automatic shutoff has always had a problem that randomly causes a high pitched noise. There is apparently a pressure differential issue in the system that causes the automatic shutoff to flutter, which causes the noise. The incoming water pressure is within spec, so the trouble is somewhere in this water system. When the system is set up and working, it does filter water, initially. Unfortunately the water quality degrades rapidly with this system. At the time of install, my incoming (tap) water read 773 on my TDS meter and the output from this system read 53 on the same meter. After approximately six months of filtration the water flavor significantly degraded and ice made from the filtered water turned cloudy. The TDS meter read 798 for incoming (tap) water and 397 at the output of the reverse osmosis system. The sediment and charcoal filters did not look significantly contaminated and there was no visible damage or degradation to the membrane. I changed all of the original filters and the membrane to a brand I have used before at that time. The output water registered 59 on my TDS meter. After another six months the ice has gone cloudy and the water tastes similar to tap water again. The tap water registers 735 on my TDS meter and the output from this reverse osmosis system reads 473. Again, the pre-filters do not look significantly contaminated and the membrane has no visible degradation. Something about this water system is just not working properly.