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 UV Products Iris Dampers Drop Plenum Diffusers Balancing / Regulating Dampers 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