Two Bladed Insulated Static Round Ceiling Radiation Damper

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Model:	L97
Filter:	L97
Standard Depth:	3 ²⁷/₃₂"
Minimum Panel Size:	11¾" Diameter
Maximum Panel Size:	20" Diameter (314 in²)
Orientation:	Horizontal
Frame Material:	One Piece 22 ga. Galvanized Steel
Blade Material:	22 ga. Galvanized Steel
Insulation:	½" Thick Gypsum
Fusible Link:	165°F
Spring:	Extension Type
Finish:	Mill
Certifications:	Underwriters Laboratories, Inc.: 555C New York City MEA Listing #110-99-M CA State Fire Marshal Listing #3226-1328:105 1 Hour Combustible Ceiling Assemblies 1 and 2 Hour Non-Combustible Ceiling Assemblies
UL Classified:	2 Hour or Less Fire Resistance

212°F Fusible Link
Thermal Blanket
Top Extension:	Total Frame Depth: 10½" for heights of 11¾" - 16" 12½" for heights of 16¾" - 20"
Bottom Extension:	Total Frame Depth 5½"
Top & Bottom Extension:	Total Frame Depth: 12⅞" for heights of 11¾" - 16" 14⅞" for heights of 16¾" - 20"