

Pentair
Pentair GRO-50EN Thin Layer Composite Residential RO Membrane (4002574)
The Pentair GRO-50EN (4002574) is a 50 gallon per day encapsulated reverse osmosis (RO) membrane used in many residential and small commercial reverse osmosis systems. It is an exceptionally water-efficient membrane typically offering up to 100% water savings compared to conventional membrane technologies.
$87.99USD, free shipping over $200

At a glance
- 50 gallons of purified water per day
- Works with both Pentair GRO and conventional RO systems
About it
The Pentair GRO-50EN (4002574) is a 50 gallon per day encapsulated reverse osmosis (RO) membrane used in many residential and small commercial reverse osmosis systems. It is an exceptionally water-efficient membrane typically offering up to 100% water savings compared to conventional membrane technologies. It accomplishes this while still offering excellent purification performance. It is a “dry packed” membrane to maximize shelf life.
The GRO-50EN (4002574) can be used both with Pentair GRO Reverse Osmosis systems and with RO systems that use conventional membranes. When using a GRO membrane in a conventional system, be sure to use the product drop-down selector to choose the membrane that ships with the matched drain-line-flow-control. Please see the retro-fit instructions in the resources section of this page to learn how to fit the GRO membrane to your non-GRO RO system.
| Replace every | 30 months |
|---|
Tech specs
- 100% dry membrane
- Free chlorine 0.1 ppm
- pH 4-11
- Maximum pressure 125 PSI (6.90 bar)
- Max Temp 120°F (49°C)
- 50 GPD nominal output
- Drain flow control not included
- Permeate check included
In the box
- 1 x Pentair GRO-50EN Thin Layer Composite Residential RO Membrane (4002574)
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