NAPA window sign.

NAPA was founded in 1925 to meet the United States' growing need for an auto parts distribution system. It is a retailers' cooperative that distributes parts to both corporately and  independently owned auto parts stores. There  are over 6,000 NAPA stores.

Miller Engineering’s expanding line of window signs are a great addition to our roof top signs. Simple to install and a pleasure to look at, they come on a clear background that can be trimmed as small as .825” wide x .9" tall.  They run on 4.5 volts DC just like all our other billboards and are compatible with our AC adapters and #4804 converter modules. Like all Miller Engineering signs, they come ready-to-run.