Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Dampers - Rectangular Dampers: Model:CD-120, 121 Formed Steel Frame & 3v Blades, up to 12" w.g. APPLICATION Formed Steel Control Damper, 3v Blades, up to 12" w.g. CD-120, 121 DOCUMENTS - Submittal Sheet - Face and Bypass Details - Jackshafting - Installation & Maintenance - O & M Instruction Sheet - CD120,121 CAD Details - CD-120,121 BIM (REVIT) - 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