This listing is for one air breather cleaner grommet to only fit 1941 Buick's with dual carburetors. This is also used for a valve cover to air cleaner grommet.
Specific Measurements
Inside diameter: 20.5mm/.805"/ 13/16"
Overall outside diameter: 34.25mm/1.348" 11/32"
Groove width: 1.6mm/.064" 1/16"
Groove diameter: 27mm/1.066" 1-1/16"
Total thickness/height: 9.8mm/.39" 25/64"