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Multi-Blade Fire Dampers

Nailor (D)1200 and D1250 Series UL 555 rated Multi-Blade Fire Dampers are available with a multitude of options to suit most commercial applications. Galvanized steel construction standard, Type 304 stainless steel, and severe environment Type 316 stainless steel construction optional. Fire resistance ratings of either 1 ½ or 3 hours.