DAYTON 20UC27 LOUVER DAMPER ADJUSTABLE 24H X 54W

DAYTON 20UC27 - LOUVER DAMPER ADJUSTABLE 24H X 54W - COMBINATION LOUVER DAMPER ADJUSTABLE BLADES MAX EXHAUST (CFM) 5769 MAX INTAKE (CFM) 4034 INSIDE HEIGHT (IN.) 18 OUTSIDE HEIGHT (IN.) 26-1/2 INSIDE WIDTH (IN.) 51 OUTSIDE WIDTH (IN.) 56-1/2 MIN WALL OPENING (IN.) 24H X 54W FLANGE WIDTH (IN.) 1-1/2 NUMBER OF BLADES 4 MAX VELOCITY (FPM) 3000 BLADE ANGLE (DEG.) 45/90 CONSTRUCTION MATERIAL EXTRUDED ALUMINUM FOR USE WITH INTAKE OR EXHAUST APPLICATIONS INCLUDES BIRD SCREEN - EQUAL TO G8655893