Series 7A00 Rev B Stable Detonation Flame Arrestor Without Restriction, Concentric Version, ISO 16852 Certified; 6" Line Size, 12" Element, Explosion Group IIB3; Max. Operating Pressure: 17.4 PSI Abs, Max. Operating Temperature: =< 140 Deg. F; 1.4571 Stainless Steel Element, 1.4581 Stainless Steel Casing And Rim Material; FKM Gasket Material; Housing Material 1.4581 Stainless Steel, PN10 Flange Connection, Two G-1/2" Ports On Each Side Of The Housing; A4 Stainless Steel Cap Screw Material; Without Temperature Sensor; Aluminum Name Plate / English Type; No Paint (Carbon Steel-Zinc Or Stainless Steel); No Additional Surface Coating