Hello, How big is this blower? I have a small squirrel cage blower removed from a Mil PA amp. The blower unit is an about 4 X 2 plastic housing with a 110Vac cap run motor about 4 X 1-1/2. No flange on the fan outlet. Mounting was by a bracket fastened to the motor. Measurements are approx. Not here at home. Any help? Bill, KB3DKS