RO550-905EZ 50 GPD Complete Under-Sink System
The PureT RO550-905EZ combines semi-permeable membrane separation with multi-stage carbon adsorption to reduce heavy metals, dissolved solids, chlorine, VOCs, nitrates, fluoride, and bacterial contamination in both city and well water. Built with NSF-certified materials throughout and ships with a 3.2-gallon pressurized storage tank, long-reach chrome faucet, and complete installation hardware including quick-connect fittings for DIY-friendly setup.
Complete Kit · Everything for Install
DIY-friendly design: All connections use quick-connect fittings — no soldering, no compression tools required. Most installs can be completed under the sink in under an hour with basic plumbing knowledge.
Your Water, Purified in 5 Stages
Polypropylene Sediment Filter · 5 Micron
Removes dirt, rust, sand, and larger particulates before they can reach downstream filters. The transparent housing lets you monitor filter condition at a glance without shutting down the system. NSF certified.
Coconut Shell Carbon Block · 5 Micron
NSF-certified coconut shell carbon block reduces chlorine, taste, odors, VOCs (volatile organic compounds), SOCs (soluble organic compounds), pesticides, and other chemical contaminants. The dense block structure ensures thorough contact with no channeling.
Coconut Shell Carbon Block · 5 Micron
A second carbon block stage provides a final, dense pass of chlorine, taste, and odor reduction — protecting the RO membrane from oxidative damage and ensuring any remaining organic compounds are captured before the water reaches Stage 4.
High-Rejection RO Membrane · 50 GPD
The core of the system. This NSF-certified semi-permeable membrane rejects 96–99% of heavy metals and dissolved contaminants including lead, copper, fluoride, nitrate, cadmium, chromium, barium, and bacteria. Water that passes through is stored in the included 3.2-gallon tank.
Coconut Shell GAC Polish Filter
The final stage polishes the purified water as it travels from the storage tank to your faucet, removing any residual taste or odor that may develop in storage. NSF-certified coconut shell granular activated carbon delivers clean, crisp water at every pour.

