Two Bladed Uninsulated Static Rectangular Ceiling Radiation Damper

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Model:	289
Filter:	289
Standard Depth:	2 ²¹/₃₂"
Minimum Panel Size:	4" x 4"
Maximum Panel Size:	18" x 10" (100 in²)
Orientation:	Horizontal
Frame Material:	One Piece 22 ga. Galvanized Steel
Blade Material:	22 ga. Galvanized Steel
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