Reverse Osmosis Systems

Residential RO Systems

Watts Premier point-of-use reverse osmosis systems for high-purity drinking water with easy filter changes.

4-stage RO with storage tank and faucet.

Kwik-Change and QC quarter-turn cartridges.

Zero Waste model returns reject water.

Model	Type	Key Feature
PWRO4	4-stage RO system	Standard under-counter RO
PWROKC4	Kwik-Change RO system	Tool-free cartridge change
PWRO4ZRO	4-stage Zero Waste RO	No reject water to drain
QC RO Systems	Quarter-turn RO	Encapsulated swing-out cartridges
GTS	Residential RO	Compact design

Can't find the part you need?

Tell us what you're looking for and we'll get back to you with a price.