Series 7A00 Rev B Stable Detonation Flame Arrestor Without Restriction, Concentric Version, ISO 16852 Certified; 8" Line Size, 16" Element, Explosion Group IIA; Max. Operating Pressure: 16 PSI Abs, Max. Operating Temperature: =< 302 Deg. F; 1.4571 Stainless Steel Element, 1.4581 Stainless Steel Casing And Rim Material; FKM Gasket Material; Housing Material Steel, ASME 150 RF Flange Connection, One G-1/2" Port On Each Side Of The Housing; A2 Stainless Steel Cap Screw Material; 1X Temperature Sensor (Pt100) Ex Ib 3-Wire; Aluminum Name Plate / English Type; Adhesive Label Indicating Short Time Burn Proof Construction; Flame Red (RAL 3000) Hempadur Surface Coating