Pentair High Efficiency 50 gpd Membrane

The Pentair GRO High Efficiency 50 GPD Membrane represents a smarter approach to residential reverse osmosis, delivering up to double the recovery of a standard RO element while matching the contaminant rejection performance homeowners expect. For households on a well or municipal supply, that higher recovery means significantly less water sent to drain for every gallon of purified water produced, a meaningful efficiency gain over conventional elements that can waste several gallons per gallon made.

Engineering that extends membrane life

This element integrates a 100% dry membrane construction designed to maximize both shelf life and in-service lifespan. It maintains a 50% recovery rate and offers high rejection stability even at elevated input TDS, so performance stays consistent on challenging source water rather than declining as feed quality worsens. Its rejection performance is comparable to standard reverse osmosis elements, so you gain efficiency without trading away water quality, and the retrofit-friendly design lets it serve as an upgrade for many existing systems.

• High-efficiency element with up to a 50% recovery rate
• Double the recovery of standard RO elements, reducing drain water
• 100% dry membrane construction for extended shelf life and service life
• Rejection performance comparable to standard RO elements
• High rejection stability even at high input TDS levels
• Includes a drain line flow control and a check valve

One detail worth noting during installation: the GRO is longer than a standard residential element at 15.1", yet it still seats into standard-size membrane housing clips, making it a practical drop-in for many under-sink RO systems. Because the integrated drain line flow control and check valve are included, the upgrade requires fewer separate parts and goes in cleanly. As with any RO membrane, protect it with fresh sediment and carbon pre-filters and avoid chlorine exposure to preserve its life. For homeowners who want lower water waste without sacrificing purity, this high-efficiency Pentair element is a compelling choice.

Upgrading an existing system to this element is one of the simplest ways to reduce ongoing water waste at the kitchen sink, especially for households conscious of conservation or on a well where every gallon counts. With its proven dry-membrane technology and included flow control and check valve, it brings meaningful efficiency to residential reverse osmosis without complicating the install.