Pentair GRO-50EN Thin Layer Composite Residential RO Membrane 4005459

The Pentair GRO-50EN 4005459 is a 50-gallon-per-day encapsulated reverse osmosis membrane designed for residential and small commercial RO systems. This membrane is exceptionally water-efficient, offering up to 100% water savings compared to conventional membrane technologies, all while delivering excellent purification performance. Its dry-packed design maximizes shelf life, ensuring it remains effective and ready for use when needed.

Compatible with both Pentair GRO RO systems and conventional RO systems, the GRO-50EN provides versatile application options. When integrating the GRO membrane into a conventional system, use the product drop-down selector to choose the membrane that includes the matched drain-line flow control. Refer to the retrofit instructions in the resources section for detailed guidance on fitting the GRO membrane to your non-GRO RO system.

Technical Specifications

• Membrane Type: 100% dry
• Free Chlorine Tolerance: 0.1 ppm
• pH Range: 4-11
• Maximum Pressure: 125 PSI (6.90 bar)
• Maximum Temperature: 120°F (49°C)
• Nominal Output: 50 GPD
• Drain Flow Control: Not included
• Permeate Check Valve: Not included

The Pentair GRO-50EN is a reliable and efficient solution for your reverse osmosis needs, ensuring high performance and significant water savings.

California residents Prop 65 Warning

WARNING!

This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov

Product Weight & Dimensions
Product Weight (lbs)	1