Marinco 7" Air Vent 500 Passive Exhaust Ventilation

A low cost, high volume passive exhaust vent. Only 7" in diameter, yet will move over 1000 cubic feet of air per hour in a 15 knot breeze. Includes a 3" white air vent. Color: White Mounting: Hole 3-3/4" Size: 7" x 1 3/4"