3 Hour Out Of Air Fire Door Grille 2563-30X30 Commercial contour molded fiberglass back with

contour molded fiberglass back with a foil barrier backing

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)

Soft white

Adjustable single deflection grille

3 Hour Out Of Air Fire Door Grille 2563-30X30 Commercial contour molded fiberglass back withh3. Standard Features * 2561 Square or rectangular fire door for vertical mount only. Maximum dimension 48w, 49h. For damper free area chart A click here * 2563 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 48w, 41h. For damper free area chart B click here * 2565 Round fire door for vertical mount only. Available 4" thru 40" round. * UL and California State Fire Marshall approved * 2" thinline frame *