3 Hour Rated Curtain Blade Fire Damper

A Division of MESTEK, Inc.

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Model:	30D
Filter:	30DAV,30DAH,30DBV,30DBH,30DCV,30DCH
Depth:	4⅞"
UL Classified:	3 Hour Fire Resistance
Certifications:	Underwriters Laboratories, Inc.: 555 National Fire Protection Association: 80 & 90A ICC's International Building Code CA State Fire Marshal Listing
Orientation:	Vertical or Horizontal
Frame Material:	22 ga. One-Piece Roll Formed Galvanized Steel
Blade Material:	22 ga. Galvanized Steel
Blade Type:	Curtain
Fusible Link:	165°F
Closure Spring Material:	Heat-Treated Type 301 Stainless Steel
Closure Spring Type:	Constant Force Coiled Negator
Finish:	Mill