W Drnbl Extrd Alu Combo Dmpr, Louver Type Combination, Frame Type Flanged, Outside Height 53 1/2 in, Outside Width 23 1/2 in, Rough Opening Height 54 in, Rough Opening Width 24 in, Louver Maximum Intake 4,209 cfm, Maximum Exhaust 6,018 cfm, Flange Width 1 1/2 in, Free Area 3.5 In.H 26.5 In.
Powder Coated 2-Way Captive Fin Extended for 1/4in Panel & 1/2in Flush Panel by EZTube, Boltless, Gloss White, 60in L x 1in W x 1in H x 0.050in wall, drilled for quick release on one end.