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) 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