Best Seller | DAYTON 3C188 Mtrzd Damper,For Fan Dia. 54",24-240V 57 In.H-W 12.8 In.L Squ Alu Mtrzd Cntrl Dampr, For Nominal Duct Diameter Not Applicable, Damper Application Motorized, Number of Panels 2, Overall Height 57 in, Overall Length 12 3/4 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width... ... more DAYTON 3C188 Mtrzd Damper,For Fan Dia. 54",24-240V 57 In.H-W 12.8 In.L Squ Alu Mtrzd Cntrl Dampr, For Nominal Duct Diameter Not Applicable, Damper Application Motorized, Number of Panels 2, Overall Height 57 in, Overall Length 12 3/4 in, Rough Opening Shape Square, For Duct Shape Square, Overall Width... | | $1,279.99 go to store |