Replacement Blower for Johnson Furnaces. Outside measurement of the mounting flange is 9 1/2 x 5. There are 6 holes in the the flange, 3 on the top and 3 on the bottom.
This is a 463 CFM blower.
Johnson part # 1B5145
Replaces old part numbers 4C448 and 1TDR9
OEM Johnson part
This product has a 90 day manufacturer's warranty. The warranty is void if the part is installed in a unit it is not compatible with.