Best Seller | DAYTON 3HGK7 Round Fire/Smoke Damper,24V,15-5/8 In. D 7.9 In.H 16 In.L 15.7 In.W GStl Fire/Smke Dampr, For Nominal Duct Diameter 8 in, Damper Application Fire and Smoke, Number of Panels 1, Overall Height 7 7/8 in, Overall Length 16 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width... ... more DAYTON 3HGK7 Round Fire/Smoke Damper,24V,15-5/8 In. D 7.9 In.H 16 In.L 15.7 In.W GStl Fire/Smke Dampr, For Nominal Duct Diameter 8 in, Damper Application Fire and Smoke, Number of Panels 1, Overall Height 7 7/8 in, Overall Length 16 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width... | | $587.99 go to store |