Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Louvers - Adjustable Louvers: Model:AFL-D-4 4" Deep, Adjustable Blade, Extruded Aluminum APPLICATION The Model AFL-D-4 is a high performance extruded aluminum adjustable drainable louver. The Model AFL-D-4 can be used for exhaust or intake air. AMCA Licensed AFL-D-4 DOCUMENTS - Submittal Sheet - AFL-D-4 BIM (REVIT) - CSI 3-PART SPEC. - Operation and Maintenance Instructions - AFL-D-4 CAD DETAILS - Louver Installation Instructions - Louver Color Selector - Equipment Screen Support System - Louver Details - Louver Shapes - Actuator Sizing Chart - Effects of Birdscreen 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