Dayton 2TGD8 Square Fire Damper,13-3/4 in. W JRA1_E4ZWE01

Fire Dampers - UL, NFPA, IBC, MEA, CSFM Accommodate airflow in either direction Fire-resistance rating: 1-1/2 hr. Max. temp.: 165°F Curtain blade style (square & rectangular); single-blade (round) NFPA 80 requires retaining anglesStaticFor zero-pressure systems. Vertical-mount models close via gravity. Horizontal models have spring-assist closing.