Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. VAV Terminals - VAV Terminals: Model:OBD-FL Rectangular VAV Box APPLICATION The Model OBD-FL was developed in response to retrofit projects. The OBD-FL incorporates a multi-point, center averaging cross flow. OBD-FL DOCUMENTS - Submittal Sheet - OBD-FL (Up to 9 x 9) BIM (REVIT) - OBD-FL (10 x 10 and Above) 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