The next time you’re in a Super Walmart or other “big box” retail store, take a look at the ceiling. Those square or hexagonal-shaped contraptions with louvers that are suspended from the top most likely were made by AES Industries, located on Alabama Highway 229 South in Tallassee.

The ceiling-mounted drop box diffusers distribute heated and cooled air throughout large interior spaces. AES Industries also manufactures roof curbs, which are large frames designed to mount exterior heating and cooling units on buildings.