S/n 47905 rp71. Inlet volume = 6870 icrm @ 14.4 psia. Discharge pressure = 24.4 psia. 850 rpm. Used & removed from service running; blower freely hand rotates. Previously powered by a 400 HP DC motor. Includes inlet and outlet silencers. Overall dimensions of blower only: 67x66x57. Weight = 6,234 lbs. Demonstration video on file.