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CRD-501

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

Certifications:

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

UL 555C (Listing # R13446)

UL 555S (Listing # R13317)

Purchase Options:
Codes:

International Building Code (IBC)

National Fire Protection Association (NFPA 92 and 105)