4" X 21" ESPA1 RO Membrane

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$276.25
SKU: RO-Membrane-ESPA1-4X21
Hydranautics ESPA (Energy-Saving Polyamide) RO membranes continue to meet the ever-increasing demands of the water treatment industry. Industrial users worldwide have made ESPA their choice for high productivity and salt rejection. There's an ESPA solution to satisfy even the most challenging water treatment needs with exceptional performance, productivity and savings.
  • Size : 4" x 21"
  • Flow Rate : 1,000 gpd | 3.8 m³/d
  • Test Pressure : 150 psi
  • Nominal Salt Rejection : 99.4%
  • Minimum Salt Rejection : 98.0%


  • High Productivity, Energy Saving Reverse Osmosis Membranes.
  • Enhanced Membrane Chemistry for Increased Chemical Resistance
  • Innovative Spacer Design to Minimize Trapping of Small Colloidal Particles
  • HYDRAblock Technology Providing Biostatic Properties to Minimize Proliferation of Biological Fouling
  • Proprietary Vented Seal Carrier to Eliminate Pressure-Shock Damage During System Startup

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