Carbon steel construction, 22 5/8" diameter X 8.25" wide shrouded radial blade wheel. Installed stainless steel oversize flanges on inlet and discharge (bolt circle matches an 18"Ø ANSI 150 connection on both). Inlet diameter: 13", discharge opening: 12.75" X 10.37". Inverter duty motor: 15 hp, 254T frame, 208-230/460 volt, 1765RPM, 60Hz, 3 phase. 1:1 belt driven. Overall dimensions: 45x45x50. Weight = 755 lbs. Demonstration video on file.