The Parker 16W618 Plug-In Elbow Composite is a 90 degree elbow fitting made of composite material for use in pneumatic systems. It has 1/4 inch NPT female pipe thread connections and is rated for a maximum pressure of 150 psi. The elbow provides a leak-free way to change direction in a pneumatic line. With its lightweight composite construction, the elbow offers corrosion resistance for reliable performance. The elbow can be easily installed by threading it into pneumatic components in applications such as automation equipment, packaging machinery, and process control systems.