... Membrane Element 1. RO Membrane,Reverse Osmosis Membrane, Hawkeyed Membrane,Filmtec membrane products include Reverse Osmosis system water purifier,water dispenser ... (0.38)GMembrane area proportion ft2 (m2)3.5(0.32)3.5(0.32)4.8(0.45)Test ConditionPressure60psi ( ... range,Continuous operation3~10PH range,Short-Term Cleaning2~11 High Quality RO Membrane and Reverse Osmosis Membrane for RO water purifier