3/4", with 1/4" NPT Female Thread. Heavy duty spring firmly holds chuck onto valve while inflating tire. 1 piece Ball Foot Air Chuck. It's just take you 1 minute. We'd like to settle any problem in a friendly manner.
1/4" NPT Single Chuck with Grip
1/4" NPT Air Chuck With Clip, Truck car Tire Hose Tool
1/4" NPT Ball Foot Auto Car Air Chuck Tire/Tyre Inflator Fitting
