The 3/8 x M22 Push-to-Connect DOT Swivel Male Elbow is a push-to-connect fitting designed to connect tubing to a male threaded port in a 90-degree angle configuration. The swivel feature allows the fitting to rotate freely, providing flexibility in the direction of the tubing. This fitting is commonly used in DOT (Department of Transportation) air brake systems, pneumatic systems, fluid transfer systems, and automotive applications where a secure, leak-proof connection is required, and easy installation and disconnection are needed.