Systems Tank-4 4 Gallon Residential Pre-Pressurized Reverse Osmosis Water Storage Tank

Works great! I got the water pressure back. Easy to install.

Works great, easy to install, I replaced a 10 year old tank that started leaking at the Schrader valve, this tank did the trick. Amazing volume of water before it starts to slow.

Working well, capacity seems to be as advertised. No funny orders or taste. Easy to install. Preset pressure was perfect. Replaced the old 4 gallon that couldn’t keep up with family needs.

Perfect replacement to our old system, all we know is it was about 13 years old and we have had poor pressure for two years, right after last filter change by local company. Finally wanted to replace all the filters, tank and membrane all at once. It was very easy to do. Great pressure out of the new tank that lasts for almost 2 minutes on full pressure, then pressure lowers consistently for a couple more. It hits the front of our sink now. So we will not even need to turn the gooseneck on all the way on like we have been. Would recommend and will be back for more filters, etc in the future. This was the first time doing it myself and we replaced the tank AND membrane along with the filters for cheaper than JUST filters cost through the local company,

Great replacement for old tank I had for over 10 years. Good quality and comes pre-charged. No instructiona necessary, just remove old tank, apply plumbers tape and screw on fitting and attach water line, then check for leaks. Fits most undersink RO systems. One tip: you will need to wait several hours for the tank to fill. At first it will seem like the tank is not filling up, but just give it several hours and it will be full.

Best price for my apex tank replacement. Works perfect.

I bought my APEC system in 2018. I've done yearly filter changes, and the occasional RO filter replacement. The system ran great. Then several weeks ago, I noticed the water was coming out in much lower quantities. I could maybe get half a liter out and then it would just dribble. It was like it had an inflamed prostate. I read some other reviews and decided to buy this tank. Problem fixed! I get a nice, full flow of water and much more than a little tinkle. The tanks are only supposed to be good for five years, and then the diaphragm inside them slowly loses pressure which means the tank will fill, but you won't get very much water out of it since the diaphragm has lost pressure. After I removed the old tank it was almost full and there was over 2 gallons of water still in it that wouldn't come out of the faucet anymore.

I have a model RO90 APEC system that I bought 5 years ago and for some reason about a month ago, it seemed to only filter about a half a gallon at a time. I decided that it might be the tank that was the problem so I ordered this tank and it fixed the problem completely. While I was replacing the tank, I also moved the filters out from under the utility sink and mounted them on the outside of the sink. Then I set the tank under the sink so now the system is easier to work on and the new tank and whole system works great now.