9″ x 18.25″ Louver – 4 Blade Adjustable Anodized Finish

9″ x 18.25″ overall flange width, 4 blade Louver, 1 3/4″ deep.
Heavy gauge Aluminum anodized finish.
UHMW shims installed between louver vane and frame for added ease of movement.
Cutout needed 8.125″ x 17.375″.