Top Gun Mounting Grommet
This flexible trim ring is ideal for installations where the mounting hole in the hardtop or mounting plate is larger than your Rupp outrigger base. This grommet mounts underneath the top and closes the gap between the hole in the top and the outer tube of the outrigger base.
Fits mounting hole diameters of 3-1/8 to 3-1/4. See below diagram.