This Bell Reducer Coupling is made of high-quality 304 stainless steel and has a 150# rating. It features female-to-female end connections, with a 1/2 inch diameter on one end and a 3/8 inch diameter on the other. The fitting type is a reducing coupling and it has NPT-to-NPT end connections. This product is manufactured in Taiwan and is perfect for use in industries such as business and industrial, hydraulics, pneumatics, pumps, and plumbing.