The 56J URAI-J blower has a 5 inch gear and a 6 inch rotor length. The NPT connection is 4 inches with a shaft diameter of 1.125 inches. Please refer to the installation and operation manual for more technical information about model 56J URAI-J. For better assistance with ordering model 56J URAI-J please contact air blower services.
Reference BOM #74067020 or 56J URAI-J