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904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 10" Duct Opening (front blades parallel to shortest dimension)
Designed to minimize vision into the air duct
Hand operated lever for easy filter access and cleaning
Adjustable steel roll formed blades oriented for 1 or 2 way airflow pattern
Soft white
2" 3 Hour Vertical Mount Fire Door 2561-6X6 Residential Registers & Grilles 904 - Double Deflection Adjustableh3. 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 *
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