The Gaither Tool 14L Bead Bazooka, No. BB14L3, features a 3" barrel and the patented rapid air release valve. With its larger tank, the BB14L3 can handle all automotive, truck, and light agricultural tires and set the most stubborn of beads. It swiftly empties its volume with the pull of its trigger, and it's lightweight and portable enough to easily use in the shop or on the road.