Pentair Pentek GRO-50EN RO Membrane


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  • Produces great-tasting, high-quality water with less wastewater
  • Drain line flow control and permeate check valve
  • Double the recovery over standard reverse osmosis elements with comparable rejection performance


A high recovery GRO (Generic Reverse Osmosis) encapsulated membrane is a type of reverse osmosis membrane designed to maximize water recovery while maintaining high rejection rates for contaminants.

Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water. In traditional RO systems, a significant amount of water is typically wasted during the purification process. High recovery membranes aim to minimize this waste by allowing more water to pass through the membrane and be recovered as purified water.

The encapsulated design refers to the membrane being housed within a protective enclosure or module, which helps maintain its integrity and prolong its lifespan. This design also facilitates easier installation and replacement.

Overall, a high recovery GRO encapsulated membrane offers improved water efficiency and purification performance compared to traditional RO membranes, making it suitable for various applications where water conservation is important.


  • NSF International tested and certified
  • 189 litres per day flow rate with 96% nominal rejection
  • Max Pressure 125psi
  • PH 4-11
  • Max temp 49 deg C
  • Free chlorine 0.1ppm
  • Typically lasts 2 years before replacement.