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4" x 21" | 1000 GPD | 150 psi | 99.4% Rej. | Hydranautics ESPA Low Pressure Membrane

In Stock for Immediate Shipment.
Price $265.00
More Information
Manufacturer Hydranautics
Compare with Similar Items
Hydranuatics has discontinued all elements less than 40" Length in 2020. Availability is limited to quantity on hand. We recommend Applied Membranes M-T4021ALE as a direct replacement. AMI Membranes are Made-In-USA with a large inventory in stock for immediate shipment & are competitively priced.

Hydranautics Membrane Elements 
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Model Number:


Membrane Description: Energy-Saving Polyamide
High Productivity Membranes
Gallons per Day: 1,000 GPD
Salt Rejection %: 99.4% Nominal, 98% Minimum Salt Rejection
Size (Approximate): 4" Diameter × 21" Length 

*Please see membrane product specifications sheet for test conditions and complete performance information.

ESPA-4021 Specifications