AXEON LE1–Series Reverse Osmosis Membrane Elements are designed for low energy operating pressures of 150 psi. These membranes offer flow rates up to 12,500 gallons per day with nominal rates of 99%. LE1–Series RO Membrane Elements are NSF-61 certified, and are manufactured in a state-of-the-art, ISO-9001 compliant automated rolling facility, providing you with precise and advanced membrane quality that delivers on performance and cost. Benefits: NSF-61 Certified Low Operating Pressure Fiberglass Wrapped for Enhanced Durability?