American Aldes 6" Fresh Air Intake Wall Hood.

Galvanized Steel 6" duct connection.  No damper.  Includes screen to keep out insects, birds.  Add a 6" Inline Backdraft Damper to create a dampered and screened wall cap.

NOTE:  Often used as intake for HRVs, ERVs, Fresh Air Systems. Made of heavy gauge G90 galvanized steel.  Suitable for use in exhaust or supply ventilation systems, and fresh air kits.

A=6"
B=3"
C=4"
D=6"
E=10"
F = 9"