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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Standard Features * 1 1/2 hour rated fire damper * 2549 - Round damper for vertical mount only
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
1050 Series Submittal
Curved saddle with gasket provides airtight fit to spiral pipe
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 14" Duct Opening (front blades parallel to shortest dimension)
4" 3 Hour Vertical Mount Fire Door 2661-20X20 past 12 months Standard Features * 1 1/2h3. 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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