Maple Wood Vent Flush Mount 4"x12" No Damper is a quality hi-output flush vent.
overall area (sq. in.): 4"x12" airflow area (sq. in.): 30
• 30% More Air Flow • Grooved Frame • Easier Installation (No Parts extend below frame) • Integrated Slide Damper Available (Easily Installed) • Beveled Bi-Directional Louvers • Lifetime Warranty on all 10 Standard Sizes • Highest quality registers handmade in USA