Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Dampers - Small Motorized Round Dampers: Model:CH-10-R Small Dampers with (spring return) Actuator APPLICATION The Chicago Damper was developed in response to retrofit bathrooms in high rise hotels, office buildings, and apartment buildings. They are also recommended for new construction. CH-10-R DOCUMENTS - Submittal Sheet - CH-10 Operation & Maintenance - CH-10-R BIM (REVIT) Drop Plenum Diffusers Balancing / Regulating Dampers UV Products Iris 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