ESPA-4611 Hydranautics Nitto 930 GPD at 150 PSI 4.6 x 11.3 inches 99.4% Rejection Membranes

Hydranautics ESPA-4611 Energy-Saving RO Membrane (930 GPD)

For commercial water purification, specialized industrial equipment, and challenging water treatment systems requiring a compact yet highly productive membrane, the Hydranautics ESPA-4611 delivers exceptional performance. Manufactured by Hydranautics (a Nitto Group Company), this energy-saving polyamide (ESPA) reverse osmosis element provides leading-edge thin-film composite technology in a unique 4.6-inch by 11.3-inch footprint. Designed to treat challenging brackish water sources and standard tap water, it significantly reduces total dissolved solids (TDS) and other impurities while minimizing the energy required by the system's high-pressure pumps.

The ESPA-4611 is engineered to maintain high productivity and outstanding water quality across continuous-duty applications. Evaluated under standard test conditions using a 1,500 ppm NaCl solution at an applied pressure of just 150 PSI, this highly efficient spiral-wound membrane produces a dependable nominal permeate flow rate of 930 gallons per day (GPD) while achieving an impressive 99.4% nominal salt rejection rate. Featuring 31 square feet of active membrane area, it serves as a reliable, cost-effective solution for light industrial reverse osmosis systems, municipal water plants, commercial beverage bottling operations, and complex pre-treatment setups where high rejection and low operating costs are required.