WR90 Feedthru Bulkhead, 0.5 inch thick 2.25 inch x 2.25 inch machined block, 1.75 inch x 1.75 inch mounting hole pattern, choke flanges

WR90 Feedthru Bulkhead, 0.5 inch thick 2.25 inch x 2.25 inch machined block, 1.75 inch x 1.75 inch mounting hole pattern, choke flanges