4" X 21" ESPA1 PurClean Spot Free Rinse Membrane

4" X 21" RO Hydranautics Espa Series Membrane
SKU: RO-MEMBRANE-ESPA1-4X21
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$255.79
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Designed for the PurClean Spot Free Rinse system, this Hydranautics ESPA membrane delivers exceptional performance with a 1,000 GPD permeate flow rate and 99.4% salt rejection. Known for high productivity and energy savings, it features a spiral-wound configuration, a durable composite polyamide material, and a 28.6 ft² active membrane area. Measuring 21" long, 4" wide, with 3/4" tube diameters, it meets industrial water treatment demands with reliable efficiency.

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  • 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%

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  • 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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*Please review our warranty policy here for additional details.

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