Under-sink reverse osmosis system with filters and storage tank below a drinking water faucet

Gilbert Reverse Osmosis

Reverse Osmosis Drinking Water in Gilbert, AZ

Under-sink reverse osmosis for cleaner-tasting drinking water, coffee and ice, installed at your kitchen sink.

Reverse Osmosis Systems for Gilbert Homes

A reverse osmosis (RO) system pushes water through a very fine membrane that holds back most dissolved minerals and salts, along with many other contaminants. Pre-filters protect the membrane, a small storage tank holds the filtered water, and a carbon post-filter polishes the taste before it reaches a dedicated faucet at your sink.

RO pairs well with a water softener. The softener protects the whole house from scale, and the RO system removes the minerals and the small amount of sodium the softener adds, so drinking and cooking water tastes clean.

We install RO under the kitchen sink, add a faucet through the sink or countertop, and can run a line to your refrigerator for filtered water and ice.

Get a Free Estimate

Glass of clear water being filled from a slim brushed-nickel reverse osmosis faucet beside a modern kitchen sink, white quartz counter

Reverse Osmosis Options

OptionHow it worksGood for
Tank ROFills a small storage tank under the sinkMost kitchens; steady flow at the faucet
Tankless ROFilters on demand without a storage tankTight cabinets; less space under the sink
Remineralizing filterAdds back a little calcium and magnesium after the membranePeople who prefer a fuller taste

What Is Included

Brushed nickel dedicated drinking water faucet mounted on a white quartz countertop next to a main kitchen faucet

Dedicated faucet

A separate drinking water faucet mounted in the sink or countertop.

Under a kitchen sink: reverse osmosis drain saddle clamp on the sink drain pipe with small tubing neatly routed, clean cabinet

Drain connection

RO sends a small amount of water to drain. We connect it with the right saddle or tailpiece so it stays quiet and leak-free.

Stainless steel refrigerator door dispenser pouring filtered water and ice into a glass in a modern kitchen

Fridge or ice maker line

Optional tubing to the refrigerator so ice and dispenser water come from the RO system.

Set of new reverse osmosis replacement filter cartridges and a membrane laid out on a kitchen counter

Filter schedule

We tell you which filters to change and when, so the membrane keeps working.

How Installation Works

  1. Check the cabinet. We confirm space for the tank and filters and where the faucet and drain will go.
  2. Install. Most RO installs take a couple of hours.
  3. Flush and test. New filters and the membrane are flushed before you drink the water.

Reverse Osmosis Drinking Water Questions

How often do RO filters need changing?

Pre- and post-filters are usually changed about once a year, and the membrane every few years depending on water use and quality.

Does reverse osmosis waste water?

RO sends some water to drain while it filters. Running it after a softener and keeping filters fresh helps the system work efficiently.

Can RO connect to my refrigerator?

Yes. We can run a line from the RO system to the fridge for filtered dispenser water and ice.

Do I need a softener if I have RO?

RO treats water at one tap. A softener protects the rest of the house from scale. Many Gilbert homes use both.

Get a Free Reverse Osmosis Estimate

Tell us about your kitchen sink and refrigerator. We will recommend a system that fits the cabinet.

Call 602-835-4835

Free estimate, no obligation

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