BBD-Q Back Draft Damper
BBD-R Circular Back Draft Damper
BCAV Mechanical Constant Flow Damper (CAV)
BID Iris Damper
BVCD Rectangular Volume Control Damper
BVCD-G Rectangular Volume Control Damper with Gasket
BVCD-L Smoke Evacuation Damper With Grille
BVCD-R Circular Volume Control Damper
BVCD-RP Circular Volume Control Damper with Perforated Flap
BVCD-S Smoke Evacuation and Shaft Damper