DAYTON 3HGK5 Square Fire/Smoke Damper,23-3/4 In. W
$684.99
23.75 In.H 16 In.L 24 In.W GStl Fire/Smke Dampr, For Nominal Duct Diameter Not Applicable, Damper Application Fire and Smoke, Number of Panels 1, Overall Height 23 3/4 in, Overall Length 16 in, Rough Opening Shape Square, For Duct Shape Square,...