100% pressure tested. Rated at maximum 300 psi at 150°F or 150 psi at 300°F. Not for use with potable drinking water. UL and FM listed. Use for above ground gas, LP and air applications. Always check your local plumbing and gas codes before starting any piping projects. Not for use in underground applications. IPS threads for compatibility with other project materials such as lamp parts, valves, etcetera. Black. Size 1/2”.