CRD-501
The CRD-501 is a round UL555C classified damper with UL555S leakage class I rating.
International Building Code (IBC)
National Fire Protection Association (NFPA 90A and 101)
Certifications:
California State Fire Marshal (CSFM) Listing #3230-0981:0113
UL 555C (Listing #R13446)
UL 555S (Listing #R13317)
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STATIC MODEL DOWNLOAD3D CAD2D CAD
CRD-501
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