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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Designer Color or Plated Metal Finish available on this product
SD52 Series Performance Data
Lever Operated Opposed Blade Damper
Perforated face grille
Multi-Shutter Damper standard on 6" widths and larger
4" 3 Hour Vertical Mount Fire Door 2661-36X30 Smoke-Fire Damper Designer Color or Plated Metalh3. 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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