Threaded Air Vent for the breather hole on drum shells. Creates a clean finished look. The air vent is 5/8" long and will fit a shell up to about 7/16" thick.

These parts fit into the 1/2 inch air breather hole on drum shells, creating a nice clean, finished look. The air vents are 16 mm long (about 5/8 inches) and once you give the back piece 2 good turns to hold it in place, leaves about 13 mm left for the shell thickness (up to about 1/2 inch) - so this will barely fit a 20ply or thick stave/sold shell - in this case you may need to apply some loc-tite. Relatively easy to install and remove. Our best selling vent grommet.