Max pressure: 150 psig. Membrane complies with mil-prf-32097 and navy standard drawing 803-6983497. These membranes are the 'open architecture' style membranes that are used in the 10 gpm and 50 gpm ows polishers. The polisher system automatically processes the oily/water separator effluent and produces water with an average oil content of 5 ppm suitable for overboard discharge. The elements themselves are made of a cylindrical ceramic support structure, which contains a large number of passageways extending from the inlet to the outlet end. Length: 48.00 inches. Has a 6 inch groved adapter and a 1 inch (37 degrees) flared fitting.