SUEZ AK-90LE; 4" x 40"; High Rejection; 2300 GPD; Replacement Reverse Osmosis Membrane - (Product Flow @ 110 PSI) (Veolia)The SUEZ AK 90LE is a 4" x 40" high rejection thin film composite reverse osmosis membrane designed for low pressure brackish water applications, delivering 2300 GPD at 110 PSI with 99. 5% average sodium chloride rejection. This low energy commercial membrane element achieves near standard rejection performance at operating pressures as low as 100 PSI, offering significant energy savings for systems treating water with TDS levels up to 5,000 mg L.