Air King Through The Wall Ewf-180 Exhaust Fan 4-5/8 to 9-1/2 in/ x 11-11/16 in.

Easily installs using the included adjustable hanging brackets

4 in round duct connector with damper protects against backdrafts and ensures quiet operation

Side access panel allows you to wire the fan from inside or outside the housing

White, polymeric grill secured in place with torsion springs, easily removed if necessary

Blower wheel one-piece polymeric centrifugal blower wheel, 5-7/32 inch Dia x 229/32 inch W with 30 paddles