Pay in 4 interest-free payments of $31.63 Learn more
Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
Standard collar diameter is the same as the diffuser size
Product sizes available to fit spiral pipe diameter 8” – 48
w/ Tool Operated Opposed Blade Damper
14 GA 304 SS Construction
RS34 Series Engineering/Performance Data
4" 3 Hour Vertical Mount Fire Door 2661-26X26 Commercial Standard collar diameter is theh3. 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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