Description

 The Specially designed OBD-VB duct damper is perfectly ideally for grilles.  It can be quickly adjusted via a screw driver. This air volume control solution is usually fixed on the back side of different kinds of grilles.
The opposed blade damper applies high quality extruded aluminum profile as its raw materials. It is a kind of volume control damper principally used to control to control the diffuser air volume at the duct side. Two models as OBD-VA and OBD-VB are for your choice.