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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
2-way reversible door on rectangular sizes
Damper manufactured from corrosion tested galvanized mild steel (G-90)
916 Series Submittal
1/4" cross bars
Nylon bushings on adjustable blades prevent metal on metal rattle
3 Hour Out Of Air Fire Door Grille 2663-44X44 Residential Registers & Grilles 2-way reversible door on rectangularh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"
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