5/8 x 1/2 Nylon Air Brake Male Tee Branch with VibrasealThe 5 8 in Tube Outer Diameter x 1 2 in Tube Outer Diameter x 1 2 Nylon Air Brake Male Tee Branch with Vibraseal is a brass fitting designed for secure, leak resistant air brake connections. The Vibraseal coating on the Male Pipe Thread (MPT) branch provides a tight, self sealing connection, reducing the risk of leaks and eliminating the need for additional sealants. This tee is ideal for high vibration environments, such as commercial vehicles and