Lambro 3440 4-In. Aluminum Wall Exhaust Hood Vent with Damper and 11-In. Pipe, No Interior Trim Plate, 3440
• Recommended for clothes dryer or bath fan exhaust installations;• For new or replacement vent installations;• Mounts over existing 4-in. openings;• 11-in. pipe for through-the-wall installation; does not include interior trim plate;• Designed for maximum airflow;• Features an opening with a net-free area of 20.5 sq. in.;• Opening and closing damper stays closed when not in use;• Made of 26-gauge aluminum hood for durability and will not rust to maintain longevity;• Installation screws not included;