Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Louvers - Fixed Louvers: Model:FL-D-4 4" Deep, Fixed Blade, Drainable, Extruded Aluminum APPLICATION The Model FL-D-4 is a 4" deep extruded aluminum fixed drainable louver. (AMCA Licensed) at 1056 FPM only .01 oz/per sq. ft. water penetration and a free area of over 50%. FL-D-4 DOCUMENTS - Submittal Sheet - FL-D-4 CAD Details - FL-D-4 BIM (REVIT) - CSI 3-PART SPEC. - Louver Installation Instructions - Louver Color Selector - Equipment Screen Support System - Louver Details - Louver Shapes - Effects of Birdscreen 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