11" SINGLE INLET DIRECT DRIVE PLENUM FAN, MOTOR TYPE:1 HP 230/460 VOLT WITHOUT SHAFT GROUNDING, RPM:2885, MAX OPERATING TEMP:185, IMPELLER DESIGN: BACKWARD, IMPELLER MATERIAL: STEEL, BLADES: CURVED, DIMENSIONS: 17”H X 16”W X 18”D, WEIGHT: 75LBS IN MFG CRATE, MADE IN USA