Volume: 820 SCFM Vacuum: 8.9 In. Hg (70°F Inlet @ sea level)
Spencer Industravac D Series 40HP
Model No: SD-540B
Serial No: 806450 G05
Original Filter Bag No: BVA-90044
40 HP Baldor Motor: 230/460 Volt, 3500 RPM, 3 Phase, Frame: 286TZ
Demonstration video on file.