Built-in backdraft damper and bird screen
Steel baked black enamel finish
Sturdy corrugated aluminum construction
One end crimped, compressed
GREENGUARD Level 4 highly..
DVB-350 (For Upward Exhaust Direction) DB-3D (For Downward Exhaust Direction)
22 gauge aluminiz..
Louvered Wall vent white
Easy to install
Long lasting quality
Made in the USA
Grille is designed for accepting all types of Flex Duct
All plastic construction