DAYTON 20CK20 Sleeved Fire Damper,Square,Steel($111.99Value)

Description

11.8 In.H-W 12 In.L Spring Fire Dampr w/Sleeve, Damper Application Fire, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 4000 fpm, Overall Height 11 3/4 in, Rough Opening Diameter Not Applicable, Rough Opening Shape Square,...