ESPA2-LD MAX Hydranautics Nitto 12,000 GPD at 150 PSI 8 x 40 inch Membranes

Hydranautics ESPA2-LD MAX Low Energy RO Membrane

The Hydranautics ESPA2-LD MAX is a high-efficiency Low Energy Brackish Water RO Element that combines maximum productivity with advanced fouling resistance. As the flagship model of the "ESPA" (Energy Saving Polyamide) series, this element features an expanded 440 ft² active surface area, allowing for a 20% increase in water production compared to standard 400 ft² elements. This "MAX" configuration enables users to reduce the number of elements required in a system or significantly lower the operating flux, leading to extended membrane life and reduced capital costs.

The "LD" (Low Differential) technology incorporates a thicker 34-mil feed spacer, designed to minimize the accumulation of biological growth and colloidal particles. This fouling-resistant design lowers the differential pressure across the membrane and improves the effectiveness of cleaning cycles. Operating at a low pressure of 150 PSI, the ESPA2-LD MAX is the ideal solution for treating difficult brackish waters, wastewater, and surface waters where energy efficiency and high permeate quality (99.6% rejection) are critical.