Wall louvers are sized to match California Turbo Building Vault Fans, and designed to prevent rain from entering through the louver.

Wall louvers are constructed of galvanized steel with 1/2" mesh screen inside.

Louvers can be used for either the air inlet or air discharge side of a vault.

Fire dampers are rated by "Underwriters Laboratories®" for three hours when used in a three or four hour rated wall or partition assembly, and for 1-1/2 hours when used in a one or two hour rated wall or partition assembly. Fire damper must be mounted vertically. Fire damper designed for interior walls.

Fire dampers are built of galvanized steel.

IMPORTANT! Because the fire damper utilizes a fusible link that senses heat from the fire and deploys the damper curtain; FIRE DAMPERS MUST BE MOUNTED ON THE AIR DISCHARGE SIDE OF THE VAULT. If the fire damper is mounted on the air inlet side, it will not deploy in a fire situation because the fusible link will be cooled by outside air.