Original 1990 air door trade vintage catalog for the MARS SALES COMPANY, INC.  Main office and plant were located at 14716 South Broadway, Gardena, CA.

Manufacturers of Heated and Unheated Air Doors. 'Climate Control, Insect Control and Energy Control'. 'Commercial Air Curtains'.

Has product images, description, applications and specifications to provide product details.

Unbound from a large rare 1990 Industrial Construction and Renovation Catalog, this unique old eight-page technical brochure would display beautifully matted and framed. Awesome cover graphics. A fabulous addition to your retro industrial air door library. Pages are detached. (Bulletins 290 & 290S).