Maple Wood Vent Flush Mount 4"x10" No Damper is a quality hi-output flush vent.
overall area (sq. in.): 4"x10"
airflow area (sq. in.): 26.25
• 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