Today we're going to be taking a look at and installing the Optronics rectangular trailer reflector, part number RE15RK. This is for the red color. They're also available in amber, part number RE15AK. These rectangular trailer reflectors have adhesive on one side, and feature two holes to put hardware through. The ODOT-compliant red acrylic reflector. They measure 4-3/8" long and 1-1/8" wide, and… see more >