Reverse Osmosis Water Filter Systems

Drinking Water Systems

Your water may not look brown or cloudy when it comes out of the tap, but that doesn’t mean it’s free of contaminants or chemicals like chlorine, chloramines, lead, microbial cysts, VOC’s and THM’s. Angel Water Drinking Systems for your kitchen or bathroom tap will help you rest easy knowing your family is protected. Our advanced 3-Stage or Reverse Osmosis filter systems can go right on or underneath your counter and filter over 60 contaminates.

Our Drinking Water Systems are more environmentally friendly than bottled water and much less of a hassle than a filter pitcher you have to refill again and again. Best of all, our drinking water systems are easy to install and use and won’t slow down your tap. They deliver up to 50 gallons/day of fresh, pure, filtered water.

An Angel Water Drinking Water System will make you feel like a master chef. Your coffee, tea, pasta and more will taste better than ever without foul odors or tastes that can come from unfiltered water.

Reverse Osmosis Drinking Water System

Reverse Osmosis (RO) drinking water systems provide high-quality water for worry-free drinking or cooking. This state-of-the-art filter will improve the quality of water from wells or municipal water supplies.

Here’s How an RO Works:

  1. Household water is directed through a prefilter for filtration to remove sediment, chlorine taste and odor, and particulate matter.
  2. The water is then forced, by pressure, through a semi-permeable membrane where a high percentage of the dissolved solids, etc. are rejected and flushed to the drain.
  3. Filtered water is reserved in the storage tank until needed. An activated carbon absorption block filter that removes tastes and odors polishes the water immediately before going to the faucet.


  • Patented HydroLink® communication technology allows for the remote display of valuable product performance, water usage and filter life information when installed in conjunction with the EcoWater Series 3500/3700 product line.
  • Industry rated, 50 gallons per day membrane production rate, (actual production rate will vary depending on water usage and conditions).
  • The filters are enclosed for cleanliness and ease of replacement.
  • Changing filters does not require turning off the water, a simple 1/4 turn of the filter shuts off the water and the filter is released at the same time.


  • Unique and elegant chrome or brushed nickel faucet styles.
  • Optional electronic faucet indicates when filters and membrane need to be replaced.
  • System is expandable if additional filters need to be added.
  • Additional filter selections are available, including higher capacity sediment, or a Volatile Organic Compound (VOC) rated filter.
  • The membrane can be upgraded to a 75 gallon per day membrane.
  • Adaptor kits are available to easily add a permeate pump system, which provides improved flow rates at the faucet.
  • Booster pump system available in applications where home pressure can drop below 40 PSI.


What is reverse osmosis?

The Reverse Osmosis water purification method is based on membrane filtration technology which was initially developed for U.S. Navy submarine crews to create pure drinkable water from raw untreated salt water.
It works by pressurising water through the microscopic pores of a semi-permeable membrane. Modern reverse osmosis units for the home combine membrane technology with carbon and mechanical filtration to produce the absolute cleanest, best-tasting water that you can possibly have on tap.

How does it work?

In modern reverse osmosis filtration units, the municipal system (or your well system’s pressure tank) provides the water pressure, which pushes the water through a carbon based pre-filter for the removal of chlorine and the organic contaminants (trihalomethanes) that result from disinfecting water. This pre filter also reduces particulate contamination to the micron level which extends the life of your system’s Reverse Osmosis membrane.

After that your water enters the reverse osmosis membrane, a very tight, sheet-like filter, that allows water to pass but rejects dissolved solids like sodium and impurities like lead and arsenic. Some of the water entering the unit is used to cleanse the membrane surface and flows to the the kitchen drain pipes.
The purified water is stored in a small storage tank until it is needed. When the faucet mounted on the sink is opened, the purified water is forced by air pressure through another carbon filter, which gives it a final polish and from there to the ledge faucet.

(This is a simplified description of a three-stage RO unit. Additional stages like sediment filters and additional carbon filters can be included. The simplified description omits a few very essential parts like flow control devices, check valves, and an automatic shutoff devices that stops the inflow of water when the storage tank is full.)

Is a reverse osmosis unit like a distiller?

Both effectively reduce “dissolved solids” content of water, but the processes are quite different.
RO filters water through a very tight semi-permeable membrane. A distiller is like a big tea kettle: it boils water, catches the steam, condenses it, and captures the resulting water. Most impurities are left behind in the boiling chamber.
Both distillers and reverse osmosis systems rely heavily on carbon filtration for chemical removal. (Cheap distillers often have little or no carbon filtration and are, therefore, of limited effectiveness.)

But isn’t distilled water purer than reverse osmosis water?

Distillers typically remove a few parts per million more of common mineral constituents like sodium.
However, distillers don’t do a good job with volatile chemicals with a low boiling point. Chloramines, for example, which many cities now use instead of chlorine as a disinfectant, aren’t removed well by distillers.
Reverse osmosis, with the carbon filters that accompany it, does a very good job with chloramines. Unless volatile chemicals like chlorine are removed by carbon filtration before they enter the distiller, they will be released into the room air or they will end up in the distilled water.
But in general, distilled water is very pure, as is reverse osmosis water.

A guy told me reverse osmosis units waste a lot of water… Is that true?

It depends on what you mean by waste.
A home RO unit uses water to clean itself and wash away impurities. It’s like a lot of other water-using appliances. We use water to wash clothes, to wash dishes, to wash cars, to flush toilets.
A reverse osmosis unit uses more water in its operation than you actually consume, but it doesn’t use enough that you’ll notice it on your water bill. It uses water only while it’s filling its storage tank. When the tank is full, the whole unit shuts down and no water runs to drain.
In terms of expense, it’s like two or three extra toilet flushes a day.

How long will a reverse osmosis unit last?

Virtually forever if you service it regularly and replace parts that wear out, like the storage tank and the ledge faucet.
Typical membrane life is about 3 to 5 years, depending on the initial quality of the water that it’s processing.

Someone told me that reverse osmosis units remove minerals that are essential to health. Is that true or is he twisting the truth?

It’s true that RO units remove minerals—about 95% of the mineral content anyway—but he isn’t really telling you the whole story.
The mineral issue is probably the most controversial question in drinking water purification. Experts on both sides of the issue speak convincingly.
My own view, after reading much of the expert opinion, is that the mineral content of water—either high or low—isn’t nearly as important as they would have you believe. That is, minerals in water are inorganic and hard for your body to use. You get most of your minerals from food, which provides organic, easily assimilated minerals.
The human body is a sophisticated instrument capable of adapting to a wide range of circumstances and capable of thriving in areas having water of high or low mineral content. As long as water is palatable, it’s within the body’s acceptable range.
The main issue with water is chemicals, not minerals. Whether water contains 30 or 3 parts per million calcium isn’t really significant, but the difference between 0.5 and 5 parts per million chloroform is of life or death importance.

Do reverse osmosis units need electricity?

No, they run on water pressure. You need electricity only if you add an electric pressure-boost pump or an ultraviolet lamp. Standard units have neither and normally don’t need them.

Why are reverse osmosis units so popular?

Because they produce great-tasting, very pure water at a very reasonable cost and in a trouble-free, fully automatic format.
We’ve found that RO customers are very loyal. And the most frequent comment we get is: “We drink so much more water than we used to.”

Quite Forget its there!

Water tastes great and it produces more water than I can use. I can’t even hear it. It is so quiet.

Paul M.


The installation and service techs did a fantastic job!

Rone M.

Best Experiance Ever!!!

The purchase and installation of my Angel water softener is probably the best experience I’ve ever had with a purchase. Bill who came to my house and tested my water and explained everything to me and my son in terms that we understood and Mike, who installed my unit, also explained what he would be installing and how the water softener works, were both very nice and knowledgeable and professional. It’s been a pleasure doing business with Angel! Thank you

Lynn P.

Thank you for everything!

As I was leaving Costco I was asked if I wanted a free water test. I agreed even though I didn’t know anything about the company or who they would send out. Bill Slocum is the representative that came over to do the testing. I must say I was very impressed. He was prompt, courteous, asked questions about what our needs were, and all along was educating me about water! Bill was honest about the conditions at our house, and never did he seem pushy or just out for the sale. I appreciate his knowledge and integrity. He is a good representative of Angel Water.

Roxane S.

Extremely pleased

Angel Water installed a R/O water filtration system in our home. We had well water which we did not drink (we are out in farmland) and had to rely on bottled water deliveries which were getting cumbersome and expensive. We went through Costco to get our estimate and Bill Slocum, Sales Representative, was very responsive in providing the estimate, answering our questions, scheduling the install and suggesting that we utilize one of their recommended plumbers, Ryan Quinlan, to install our new sink/faucet at the same time as the R/O system to save time. We were extremely pleased with Ryan’s work installing the R/O system and our new sink/faucet. Bill Slocum followed up with us after the install to see if everything was done to our liking and we could not be happier with the job. Our water tastes great, out new sink/faucet is terrific and we estimate that we are saving about $1,600 per year in bottled water delivery.

Linda M.

I can drink my coffee again

We have a whole house filter / softner system but out well water was so bad. Angel worked with us and we can finally drink our water again! Will recommend Angel every time!

Steve N.


Installed a Home Depot RO systems pure garbage. Angel tested my water and recommened a few different ones. Don’t cheap out! OMG!!!! The difference in my espresso making became apparent right away. The coffee tastes much better and the build-up of minerals has stopped.

Mateo D.

Works great

We are very happy with our R/O unit

Gabbie H.

Best Water Ever!

I just got it and I really satisfied with it!!! I always now carry my bottle with me!!

Ernesto P.

Fast Install

I replaced my old R.O. system with the Angel Water, and it was very easy.

Dan M.

Tired of stocking up on bottled water?

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