Review on Viair 00041 Tire Inflation Gun: Quick and Easy Tire Inflation Solution! by Robert Long

I like that it's easy to fill and easy to deflate when there's too much air. Most new cars are very picky about how much psi they should go though, for example my 21 year old Crosstrek is 33psi front and 32psi rear. This thing only has a PSI reading every 10psi, which isn't accurate enough. Because of this, you must use a separate pressure gauge in the tires, making the pressure gauge on this item pointless.