Fiveflat, yes they are fitting for air vents. The tall one is so I don't have to bend down a bunch of time. Having done a few UDS's now, it's much easier on the back....even for a short guy like me.
Cookshack sm055, UDS, Smokey Joe, Southwest Pit, couple of Weber kettles, an old gasser, and a weed burner.
Gary, KCBS -CBJ
Certified Nebraska MOINK Baller, KCBS - CBJ
Semper Fi, when in doubt empty the magazine