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Hydranautics offers a complete line of energy saving polyamide ESPA reverse osmosis membrane elements for a wide range of water treatment applications. ESPA's unparalleled performance characteristics can provide significant cost savings due to the lower operating pressures required while still providing optimal flow as well as high salt and boron rejection.

Hydranautics also offers Integrated Membrane Solutions (IMS) combining a range of RO, NF, UF and MF membrane technologies to achieve the most comprehensive, effective, low-cost solutions for the industry.

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Item #

Item Name

Permeate Flow

Normal Salt Rejection

Minimum Salt Rejection

Membrane Active Area

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N/A 12000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 12000 gal/d45.4 m³/d N/A 99.4 % N/A 99.2 % N/A 400 ft²37.1 m² Request Quote
N/A 1900 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 1900 gal/d7.2 m³/d N/A 99.6 % N/A 99.4 % N/A 85 ft²7.9 m² Request Quote
N/A 2000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 2000 gal/d7.57 m³/d N/A 99.6 % N/A 99.4 % N/A 80 ft²7.4 m² Request Quote
N/A 10000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 10000 gal/d37.9 m³/d N/A 99.6 % N/A 99.5 % N/A 400 ft²37.1 m² Request Quote
N/A 12000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 12000 gal/d45.4 m³/d N/A 99.6 % N/A 99.5 % N/A 440 ft²40.9 m² Request Quote
N/A 41000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 41000 gal/d155.2 m³/d N/A 99.6 % N/A 99.4 % N/A 1700 ft²158 m² Request Quote
N/A 9000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 9000 gal/d34.1 m³/d N/A 99.3 % N/A 99.0 % N/A 440 ft²40.9 m² Request Quote
N/A 34000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 34000 gal/d128.7 m³/d N/A 99.3 % N/A 99.1 % N/A 1700 ft²158 m² Request Quote
N/A 2350 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 2350 gal/d8.9 m³/d N/A 99.2 % N/A 99.0 % N/A 80 ft²7.4 m² Request Quote
N/A 12000 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 12000 gal/d45.4 m³/d N/A 99.2 % N/A 99.0 % N/A 400 ft²37.1 m² Request Quote
N/A 13200 Gallon Per Day (gal/d) Permeate Flow Energy Saving Polyamide (ESPA) Ultra-Low Pressure Brackish Water Membrane Element N/A 13200 gal/d50 m³/d N/A 99.2 % N/A 99.0 % N/A 440 ft²40.9 m² Request Quote
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