Series 6E00 Deflagration Flame Arrestor, End-Of-Line Version, ISO 16852 Certified; 2" End Connections, 4" Element, Explosion Group IIC; Max. Operating Pressure: 16 PSI Absolute, Max. Operating Temperature: =< 140 Deg. F; Hastelloy Element WIth Stainless Steel Rim Material - No Casing; Stainless Steel Hood; Housing Material 1.4581 Stainless Steel, ASME 150 RF Flange Connection, No Port On Housing; A4 Stainless Steel Cap Screw Material; Aluminum Name Plate / English Type; No Additional Surface Coating