CRD-1WJ
The CRD-1WJ is a UL 555C classified damper for installation in wood joist construction. These assemblies are given proprietary design numbers listed in the UL Fire Resistance Directory.
Certifications:
UL Fire Resistance Directory Approved Ceiling Design Number: L501, L502, L503, L506, L507, L508, L512, L513, L514, L515, L516, L517, L519, L522, L523, L533, L537, and L545
California State Fire Marshal (CSFM) Listing #3225-0981:0101
UL 555C (Listing #R13446)
International Building Code (IBC)
National Fire Protection Association (NFPA 90A and 101)
Configure to Order
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CRD-1WJ
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