Ultimate Premium Quality Fast Flow 90 GPD Under-Sink Reverse Osmosis Drinking Water Filter System

Shipping was fast, packaging was excellent, and the install went effortless. Between the color diagram and clear instructions, the install went smoothly. This is definitely a product that you follow the instructions so that you don't oops during the install.

We're in an area where towns around us are having PFA issues in their water supplies, plus our town water sometimes tastes quite bad. We'd been using pitcher-style filters for years, but a friend recommend that we try an RO system to get rid of more contaminants and to save money annually on filter replacements. APEC systems had excellent reviews and very good pricing, so I ordered the RO-Hi. Installation was very straightforward and took maybe three hours, total, though I suspect it could happen more quickly under simpler circumstances. Since I was installing it in the basement below our kitchen sink, I had to purchase some additional hose, but that wasn't a real hurdle. The water tastes great, and the system easily supports both the faucet on our sink and the ice maker in our freezer.

I recently installed the RO-Hi 90 GPD system in my house. Wow! What a difference in the water, and the ice cubes! Our water is so clean and healthy now! My wife was skeptical, but is now a believer. It will be hard to ever drink ordinary tap water again.

Purchased this system to replace a carbon water filter and what a difference! The installation was simple and well explained in the paperwork that came with the filter. All of the components are high quality and heavy duty - the faucet looks great! I was worried that the faucet would be a part that fails after some use, but this one is solid and much more durable that I had anticipated. The water tastes great and replenishes itself faster than we drink the water. This unit is supporting a family of 4 and we drink a lot of water - the unit has been able to keep up with the family. The flow of water from the faucet is fast, so no complaints on having to wait for filtered water. I highly recommend this unit - it is definitely worth the price!

I bought this system and upgraded the tank to the 14 gallon. Install was really easy, took about a hour in half to install. Probably would've taken less time if I YouTube the install first. Direction were easy to follow and I think any one could do this, especially with the internet's help. Took about 2 hours to fill up the tank. There are no leaks no leaks at the moment. Maybe I can do another update after awhile. I tested the TDS before set up and it read 470 after the install reading 14.

We had an apec product in our last place so i knew the nice quality i was purchasing. very nice quality. this unit has been installed two months now and works flawless. my 13 year old was impressed how the water “tastes like nothing” now. we bought the re mineralization option. this is an excellent model for small under cabinet spaces. i just put this same one in our RV.

Very easy installation under kitchen sink, with no need to mount filters with screws. I had to shorten the cold water plastic tube to the faucet with a small tubing cutter so the water adapters would fit, would have been easier with a flexible connector to faucet..All water connections were easy with no leaks !! After two complete flushings the water was ready to use. A fast fill-up from the filter faucet to get the water. We are very pleased with this water filter.

Clear installation instructions with great pictures. Nice water flow out of faucet. Doesn't take up all the space under the sink. Tastes much better than city water.

Clear instructions. Great diagrams and pictures that make it easy to follow. After discarding the first tank, the water was still a little cloudy. It did clear up after another gallon was used. The taste is pretty good. It's a lot better than what was coming straight out of the faucet. I will definitely recommend this product.

So I’m a returning customer. We had bought a unit for our current house and love it. We upgraded to the 3/8” pipe and added the pump and a larger tank (gallon) it was a huge game changer for our family. Instead of carrying around tons of bottles of water to make baby formula we now had bet water on tap! Also really helped with our humidifiers in the winter. The upgraded tank allowed us to fill 3 humidifier tanks with no problem. The water quality is second to none. Everyone who comes in our house always notices how great our water tastes. We recently moved and decided to share this great product with the people who bought our house and got a new one for the new place. Here’s our new setup.

I purchased the Green Carbon 10 whole house filter alsong with a RO-HI reverse osmosis system for our new house. Our water enters into the house from the garage so I installed it there. There was an existing 10" sediment filter which I had planned on removing but at the last minute I decided to keep it and use it too as a pre-filter to my APEC systemm. Since, in my case, installation involved disconnecting and re-plumbing the water heater, I decided to just replace it, too, as it was about 10 years old. All these changes presented quite a bit of plumbing work but everything went together fairly easily with no problems. Installation of the filters themselves was very easy. My system has been in use for about two months now and I could not be happier. Our water had a strong metallic taste and some of our fixtures were staining. Now, with the RO-HI and the green carbon 10, we have near perfect water that tastes better than any bottled water. It's too early to tell if the staining problem is gone but the water is definitely better. We drew samples of unfiltered water, water fitered by the green carbon 10 with its prefilters and from the reverse osmosis system. The unfiltered water tastes really bad. The whole house filtered water still has a slight taste and the RO water is near perfect. I also installed pressure gauges on my system at the inlet and at the output of the Green Carbon 10. I was very pleased that after passing through the Carbon 10 and two cartridge filters, I was only seeing about a 3-4psi loss of pressure. I am very please with all the APEC products and I would highly recommend them to anyone. An added plus for me is that they are made in the US.

Very easy to install and excellent results with water...

I chose Apec after considering all the options and I am very happy I did. It is a very well made product that allows a novice DIYer to install. The installation instructions are very clear and easy to follow. Our water supply contains 400 TDS. The Apec system has reduced this amount to 14 TDS, a 96.5% improvement. I highly recommend the HO-Hi!

We needed a new system, this one fits the need for more gallons per day and fast refill of the water storage tank

Easy to install, send good quality, longevity-time will tell.

Set up was easy enough. Definitely enjoying the neutral flavor.

Very impressed with system functionality, now have great tasting water! Thank you APEC.

Not quite sure how to read this yet I’ve had this unit for over a month I’ve drain the tank several times water still comes out cloudy I don’t know if that’s going to clear up or not but I’m not happy right now

Easy install even as my first pumping project. Used for a month feel good. The TDS downs to 04 from 330. Will update if not good after longer use.

I bought this product a month ago. It purified my water from 390 to 14. Now my family can drink the water safety and happy.

This is the second APEC Water System I’ve owned. First one stayed with the house I sold. This one is for my new home. After owning the APEC Water System you don’t want to be without it. Water tastes so much better with this system.

Third house, third new RO system. Won’t cook, or drink, water without it. City water measures between 280-310 ppm of “stuff” in it; RO brings that to <10 ppm; enough said.

High Quality water treatment system and easy to install.Also excellent technical support - I called prior to ordering to make sure I understood I was selecting the best product and any accessories that I needed.

I bought the RO-HI based on my daughter having bought one and loving it. We are very pleased so far( just been 1 month). It did leak a bit from one of the filters during the first week, but that stopped on its own.

Bought this for the family and it's been installed now for almost a month. Wow! We knew our water out of the faucet wasn't the best and had switched to bottled water, but this is next level! The whole family loves it. Installation was straight forward with good instructions. Instructions were detailed, but maybe a little wordy. Otherwise, no issues at all. We're enjoying every glass of water now. We opted to add the ice maker kit as well - I'm so happy to be able to use our ice again. We also upgraded the faucet to match the faucet already installed. Highly recommend this to anyone.

Rating provided by a verified purchaser

Nice water pressure. Easy to install. Customer service was also helpful in choosing which product to buy. Thank you!

I'm not the most mechanical person but found the installation was easy. The water and the water pressure is great. I would recommend this product in a heartbeat.

So far so good. Haven’t bought a water tester yet. One did not come with the system.