This union elbow meets the standards for ISO 14743:2004, PED 2014/68/UE, REACH 1907/2006, RoHS 2011/65/CE, Silicone Free, has a maximum operating pressure of 290 psi and is designed for the following applications: air. It is silver, has an operating temperature of 0 Degrees F to 160 Degrees F, is made of brass with a nickel-plated finish/coating. In addition, it is a 90 Degrees elbow, with an imperial system of measurement.