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Pentek GRO-50EN
Reverse Osmosis (RO) Membrane
(Part #: 4002574)

Pentek GRO-50EN (50 GPD) RO Membrane (4002574)

Pentek GRO-50EN (50 GPD) RO Membrane (4002574)

MSRP: US$121.00
Our Price: US$78.00
You save: $43.00

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popular NSF-58 validated 50 GPD replacement RO membrane element for under sink RO systems including Pentek GRO-2550

Pentair's GRO integrates a 100% dry membrane to help maximize its lifespan and provide enhanced performance to the end user. The GRO boasts a 50% recovery rate while maintaining a retrofit-able design for easy integration.

  • Encapsulated for easy replacement
  • Double the recovery over standard reverse osmosis elements
  • Rejection performance comparable to standard reverse osmosis elements
  • 100% dry membrane maximizing shelf life
  • High rejection stability at high input TDS
  • TLC Thin Layer Composite membrane

Recommended Operating Conditions:
Maximum Operating Temperature:120F (49C)
Maximum Operating Pressure:125 psi (6.9 bar)

Important note about selecting the correct membrane capacity: All RO systems use a drain line flow restrictor to create pressure against the RO membrane. This pressure is critical to the performance of the RO system. If the drain line flow restrictor is not correctly matched to the capacity rating of the membrane, problems such as slow or ceased water production or high water waste can result. Select a replacement membrane that matches the capacity rating of your existing membrane and system. If you want to upgrade to a higher capacity membrane to increase the rate and quantity of daily water production, it is critical that you upgrade both the membrane AND the drain line flow restictor. Contact us for assistance. If you plan to upgrade your existing RO to the pentek GRO high efficiency membrane, a special kit is available that includes the required drain line flow control. Please call us for assistance in ordering.

Notice: The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water. Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system. Pentek Membrane elements are not certified to sanitize water, remove, cysts, bacteria, or viruses. Not to be used with microbiologically unsafe water supplies without adequate disinfection before or after the membrane.