ESPA2LD-4040

Hydranautics ESPA2 (Energy Efficient Polyamide) RO membranes continue to meet the ever-increasing demands of the water treatment industry. Users all over the world have made ESPA their first choice for high productivity and salt rejection.


ESPA2 membranes are long-time industry leaders with the highest productivity and rejection available, producing up to 14,000 GPD. Get up to 250% more productivity per membrane area than conventional polyamide membranes at the lowest cost per gallon produced.


ESPA2-LD membranes feature Hydranautics LD Technology - a high-performance RO technology that helps reduce fouling from colloidal particles and biological growth. LD Technology uses special feed separators (NSF 61 potable water approved) to reduce bio-growth. This innovative feed separator design prevents the entrapment of small colloidal particles and improves cleaning efficiency.