DAYTON 3AZK4 Roof Curb Adapter,Curb Side Sq O D 22 In
$333.99
Roof Curb Adapter, Adapter Type Reducer, For Fan Base Size 25 1/2 in, For Curb Size 22 in, Material Steel, For Fan Type Downblast Fans, Filtered Supply Fans, Upblast Fans, Curb Side Width 22 in, Fan Side Width 25 1/2 in, Finish Galvanized, Function...