This Compress-Align series elbow meets the standards for UL, has a length of 27/32 inch, a maximum operating pressure of 1,900 psi and is designed for the following applications: air, inert gases, non-combustible gases, potable water. It has an operating temperature of 65 Degrees F to 200 Degrees F, and is made of brass. In addition, it is a 90 Degrees elbow, with an imperial system of measurement.