CRD-501

The CRD-501 is a round UL555C classified damper with UL555S leakage class I rating.

Codes:

International Building Code (IBC)

National Fire Protection Association (NFPA 90A and 101)

California State Fire Marshal (CSFM) Listing #3230-0981:0113

UL 555C (Listing #R13446)

UL 555S (Listing #R13317)

Purchase Options:

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