The sub assemblies and components that make up this Grommet include this Plug A/c Hole, the most expensive part.
A sample from the products for the Grommet include: Clip,da/bd Ins, Grom, Drain Hole, Clip, Washer Mouth, Plug,hole 16mm.
The lowest price component in this Grommet parts-list fiche is the Blind Plug 7.