Prefiltration
Sediment and carbon filters help capture particles and reduce chlorine or other compounds that can affect the membrane.
Better water at the kitchen sink
Reverse Osmosis Systems in Portland, Maine
Enjoy high-quality drinking and cooking water on demand with a compact, multi-stage system installed beneath your kitchen sink.
A dedicated drinking-water solution
Cleaner water for drinking, cooking, coffee, and ice.
Reverse osmosis uses a semi-permeable membrane along with prefilters and postfilters to reduce a broad range of dissolved substances and improve drinking-water taste.
Most residential systems fit beneath the kitchen sink and feed a dedicated faucet. They can also supply a refrigerator or ice maker when the layout and pressure allow.
How reverse osmosis works
Several stages, one convenient faucet
Each stage protects the membrane or polishes the finished water.
RO membrane
Water is pushed through a fine membrane that separates many dissolved substances from the treated water.
Storage and polishing
Treated water is stored in a small tank and passes through a final filter before reaching the dedicated faucet.
Designed for daily life
What to consider before choosing a system
Available cabinet space
The membrane, filters, and storage tank must fit beneath the sink or in a nearby accessible location.
Water pressure
Proper pressure supports efficient membrane performance; some homes may benefit from a booster pump.
Household demand
Tank size and membrane production should match how much drinking and cooking water your household uses.
Filter maintenance
Cartridges and membranes have different service intervals. We make the ongoing schedule clear from day one.
Reverse osmosis FAQs
What homeowners want to know
Does reverse osmosis treat the whole house?
Most residential RO systems treat water at one point of use, usually the kitchen. Whole-home systems use different equipment and are sized for much higher flow.
Can an RO system connect to my refrigerator?
Often, yes. It depends on the distance, tubing route, pressure, and refrigerator requirements.
How much room does the system need?
Most systems fit beneath a standard kitchen sink, though cabinet layout and existing plumbing should be checked first.
Better drinking water, right at the sink