Search results: OBD

TRUaire GRD Accessories and Options

Multi-Shutter Dampers – Find all products with an optional multi-shutter damper TruAire’s Multi-Shutter Dampers are the most common steel damper mechanisms used in our registers.  When you open and close the damper, the parallel blades move in unison, which affect airflow direction. Opposed Blade Dampers – Find all products with an optional opposed blade damper […]