Inox High Flow Filter Housings Print PDF Features & Information Technical Data Drawings Gallery Glass Bead Finished 316L Stainless Steel provides enhanced corrosion resistance. Pressure gauges (x2) included. Vent gauge and drain ports come fitted with PTFE wrapped plugs. SPECTRUM Inox Filter Housing- High Flow PFH-SGB SPECTRUM PFH-SGB_1HF-Technical Drawing SPECTRUM PFH-SGB_2HF- Technical Drawing SPECTRUM PFH-SGB_4HF-Technical Drawing SPECTRUM PFH-SGB_6HF-Technical Drawing SPECTRUM PFH-SGB_7HF- Technical Drawing