Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Dampers - Rectangular Dampers: Model:CD-145, 146 4" Airfoil blade damper APPLICATION The CD-145, 146 control damper is to be used in applications that require the damper blades to be contained within a 4.5" frame. CD-145, 146 DOCUMENTS - Submittal Sheet - CD-145,146 BIM (REVIT) - CD-145,146 CAD Details - Installation & Maintenance - Jackshafting - Actuator Sizing Chart Balancing / Regulating Dampers UV Products Iris Dampers Drop Plenum Diffusers Louvers Dampers UL Listed Dampers Roof Curbs and Rails Sunshades Architectural Grilles Ventilators Doors Actuators Fans Air Measuring Products VAV Terminals Security Bars & Grilles Plenums Duct Take-Offs Custom Work Manufacturer Cross Referencing System View Now Previous Next