After years of having the very finest tire inflating gun, we've re-designed it to be even better. Our Professional Tire Inflating Gun is now easier to read and has increased accuracy to +/- 1%. Filling tires is now a simple one handed operation! Simply clip the stout valve stem filler onto the tire's valve stem and use the in line trigger to inflate to the correct pressure or bleed off air with the side thumb button if you have too much. The large 2 1/4" diameter gauge reads in 0 to 100 psi in 2 lb. increments is easy-to-read and surrounded by a rubber hood to guard against accidental whacks! The long 13 1/2" rubber hose has internal braiding to stand up to years of abuse. Has a 1/4" NPT thread on the bottom of the red powder coated aluminum housing to install your own quick disconnect coupling or hose. This Tire Inflating Gun is so nice I can see some of you opening up your own inflating stations! Needs an air supply to operate, but you already knew that.