This category contains LegendPressCSG 90° Street Elbows. LegendPressCSG Carbon Steel Gas Press 90° street elbows are used to connect steel gas pipe with a FTG end to a CSG Press end. Each CSG end fitting has an HNBR O-ring which is designed to provide the heat and temperature resistance required in gas applications. They are certified to ANSI LC 4a / CSA 6.32: Press-Connect Metallic Fittings for Use in Fuel Gas Distribution Systems and ASTM F3226. They are commonly used on Schedules 10 & 40 black steel pipe (ASTM A53)