Tru-Flate Dual Foot Air Chuck is designed with a 1/4" Female NPT port, making it i for use with valves on tractors, trucks, or buses. This standard dual foot extension is built to handle a maximum air line pressure of 150 P.S.I., ensuring reliable performance in demanding applications. The dual foot design provides stability and ease of use when inflating tires or working with air valves. With its durable construction and practical size, this air chuck is a dependable tool for maintaining proper tire pressure on heavy-duty vehicles. Model Number: 17-383