DAYTON 20CK17 Sleeved Fire Damper,Square,Steel($100.99Value)

Description

5.75 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 5 3/4 in, Rough Opening Diameter Not Applicable, Rough Opening Shape Square,...