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Combination Fire Smoke Damper Steel 3V Blades UL 555 1 ...

Fire Damper Listing (#3225-0981:103) Leakage (Smoke) Damper Listing (#3230-0981:104) Model FSD-211 Combination Fire Smoke Damper Steel 3V Blades UL 555S Leakage Class I UL 555 11⁄ 2 Hour Fire Resistance Rating Application Model FSD-211 is a combination fire smoke damper with 3V style blades. This model is designed for operation and dynamic ...

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  Fire, Smoke, Fire smoke

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