Service Gauge, Product Type Heavy-Duty Tire Chucks, Chuck Type Straight Lock-On, Includes Extended Reach Dual Head Air Chuck, Maximum Operating Air Pressure 150 psi, Head Style Dual, Number of Tire Inflators 1, Pressure Increments Not Applicable, Thread Size 1/4 in, Hose Length Not Applicable, Thread Standard FNPT, Material Brass, Minimum Operating Air Pressure 10 psi