I need to find a replacement light cover for a miami-carey medicine cabinet. I can't find a replacement part on any of the sights pertaining to miami-carey. Any help would be appreciated.

Model-csp-1804-16
Surface mounted cabinet
mirror size 16"x22"
overall size 16 1/4" x 26 1/8" x 5 3/8"
uses 2 standard light bulbs