DAYTON 3AZL3 Roof Curb Adapter,Curb Side Sq O D 40 In
$414.99
Roof Curb Adapter, Adapter Type Increaser, For Fan Base Size 33 1/2 in, For Curb Size 40 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 40 in, Fan Side Width 33 1/2 in, Finish Galvanized,...