Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Duct Take-Offs - Duct Take-Offs: Model:ST-1,2,3,4 Take-Offs APPLICATION The Models ST-1 through ST-4 are take offs with self-adhesive backed flanges. The ST-1 is plain. The ST-2 offers a scoop. The ST-3 offers a damper. The ST-4 offers a scoop and damper. ST-1,2,3,4 DOCUMENTS - Submittal Sheet - ST-1 BIM (REVIT) - ST-2 BIM (REVIT) - ST-3 BIM (REVIT) - ST-4 BIM (REVIT) 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