DAYTON 20UA31 LOUVER DAMPER ADJUSTABLE 54H X 54W

DAYTON 20UA31 - LOUVER DAMPER ADJUSTABLE 54H X 54W - COMBINATION LOUVER DAMPER ADJUSTABLE BLADES MAX EXHAUST (CFM) 14 616 MAX INTAKE (CFM) 10 221 INSIDE HEIGHT (IN.) 48 OUTSIDE HEIGHT (IN.) 56-1/2 INSIDE WIDTH (IN.) 51 OUTSIDE WIDTH (IN.) 56-1/2 MIN WALL OPENING (IN.) 54H X 54W FLANGE WIDTH (IN.) 1-1/2 NUMBER OF BLADES 11 FREE AREA (SQUARE-FT.) 8.504 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 20UA31