Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Dampers - Rectangular Dampers: Model:MD-115 Opposed Blade, Balancing, 3V Blade, Steel, up to 4" wg (Rollformed) APPLICATION Roll-formed galvanized Steel frame, Heavy Duty 16 ga. galvanized Steel Blade with opposed action. MD-115 DOCUMENTS - Submittal Sheet - Jackshafting - Installation & Maintenance - O & M Instruction Sheet - MD-115 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