Posted by a reviewer on Amazon

In the defense of other reviews about thesethese are not top knotch deflators

Posted by a reviewer on Amazon

Set at 18 some tires will be 17 some will be 19

Posted by a reviewer on Amazon

Some will be right at 18

Posted by a reviewer on Amazon

These are a copycat design to the australian product known as staun deflators

Posted by a reviewer on Amazon

Exactly as my staun deflators did upon first use the orings that come supplied to seal the inside cavity against the valve stems were poor quality and fit

Posted by a reviewer on Amazon

Upon screwingfastening the deflator to the valve enough to deflate all of the orings either became stuck in the valve stem and had to be retrieved or fell out upon removal of the deflator and were subsequently lost on the ground

Posted by a reviewer on Amazon

I had to purchase sealing orings for both smittybilt and staun deflators so that theyd work

Posted by a reviewer on Amazon

I did not have these at the same time as the stauns so i can not comment on which deflates faster definitively but from memory they were just about the same