Grommet is used for #6 and #10 air conditioning hose in the same hole. The two holes allow for the hose to fit tight without cracking the grommet. The slots fit to the hose to stop air leaks through the hose entry. The grommet is made of injection molded ABS plastic that is molded in the USA. The grommet has three holes for screws to secure it to any flat surface.
The grommet requires:
1-7/8″ hole for mounting
2-7/8″ flat area for mounting
9/16″ depth