Pay in 4 interest-free payments of $48.76 Learn more
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
Holds up to 1" filter (not included)
Louvers will be Parallel to the First Dimension
BD - field installable Bowtie Damper (available on even sizes 6"-14")
REVIT FILES
4" 3 Hour Vertical Mount Fire Door 2661-24X18 Step Down Ceiling Diffuser Holds up to 1" filterh3. 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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