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Whole House Reverse Osmosis

The ultimate in water purity — bottled-water quality from every tap.

Penguin Water Whole House Reverse Osmosis System

Bottled-Water Quality, Whole-Home Scale

A whole house reverse osmosis system filters every drop of water entering your home through a semi-permeable membrane, removing up to 99% of dissolved contaminants. Unlike point-of-use systems that only treat one faucet, whole house RO delivers pure water to every tap, shower, and appliance.

Ideal for homes with serious contamination concerns — including PFAS, arsenic, nitrates, and high TDS — whole house RO provides the highest level of water purity available for residential use.

99%
Contaminant Removal
Every Tap
In Your Home
Forever Chemicals
Removes Forever Chemicals & More
USA
American-Made

What It Removes

Whole house RO is the most comprehensive filtration technology available, removing a wide range of contaminants.

Forever Chemicals

Forever chemicals linked to serious health risks

Lead

Toxic heavy metal harmful to children and adults

Arsenic

Naturally occurring contaminant in many water sources

Fluoride

Removed for families seeking fluoride-free water

Nitrates

Agricultural runoff contaminant dangerous for infants

TDS

Total dissolved solids for the purest possible water

Chlorine

Municipal disinfectant that affects taste and smell

Bacteria

Microorganisms eliminated through membrane filtration

How It Works

Understanding reverse osmosis at whole-house scale.

Reverse osmosis works by forcing water through a semi-permeable membrane with pores so small that only water molecules can pass through. Contaminants, dissolved solids, and impurities are flushed away as concentrate waste.

At a whole-house scale, the system is installed at your home's point of entry — before the water reaches any fixture. A pre-treatment stage (typically sediment and carbon filtration) protects the RO membranes, while a storage tank and repressurization pump ensure consistent water pressure throughout your home.

The result: every faucet, shower, ice maker, and appliance receives the same ultra-pure water you'd expect from a bottled water plant.

Purest Water Possible
Up to 99% contaminant removal through advanced membrane technology
Removes Forever Chemicals
Effective against PFAS, PFOS, and other emerging contaminants
Protects Your Family
Safe, pure water for drinking, cooking, bathing, and everything in between
Low Maintenance
Simple filter and membrane replacements keep the system running at peak performance

Frequently Asked Questions

Whole house RO is recommended when your water has serious contamination concerns that standard filtration can't address — such as high levels of PFAS, arsenic, nitrates, or extremely high total dissolved solids. It's also ideal for families who want the highest possible water purity from every tap, not just a single drinking faucet.
An under-sink RO system treats water at a single point of use — typically one kitchen faucet. A whole house RO system is installed at the point of entry and treats all the water entering your home. That means every tap, shower, appliance, and ice maker receives purified water. Whole house systems also require a storage tank and repressurization pump to maintain flow and pressure throughout the home.
Maintenance typically involves replacing pre-filters (sediment and carbon) every 6–12 months and the RO membranes every 2–3 years, depending on water quality and usage. A certified dealer can set up a maintenance schedule and handle replacements to keep your system performing at its best.
Whole house RO systems include a pressurized storage tank and a repressurization pump to deliver consistent water pressure throughout your home. When properly sized and installed by a certified dealer, you won't notice any difference in flow or pressure at your fixtures compared to an unfiltered supply.

Manuals & Documents

Ready for the Purest Water Possible?

Connect with a certified Penguin Water dealer to find out if whole house RO is the right solution for your home.

Find a Dealer