9 7/8"W x 9"H Hooded Vent with 6" Diameter x 8" Length Aluminum Tube

Combines function and superior fashion for ventilation needs with a concealed exhaust flap. Multiple locking positions: 3/4", 1", and 1 1/4". 6" Hooded Vent: 25 sq. in. net free ventilation area; 10" x 9 1/10" (exterior surface, edge-to-edge). Wire screen and 8" long aluminum tube included.