Apache 2800 Case spacer for Polk 6.5" speaker

Spacer with rib cutouts for a Polk 6.5" speaker on a Apache 2800 case. This should fit most 6.5" speakers and works with my polk 5.25" grill or the factory grill. I included space on the bottom of the spacer for Rivet nuts, just the way i like to attach my speakers sometimes and makes it easy to swap grills out without having to mess with the foam in the box.