All Star Regenerative Air Blowers; Inlet Size: 1.5"; Outlet Size: 1.5"; Horse Power: 3.5; Amperage Rating: 10.5000; Cubic Feet Per Minute: 105 SCFM; Height (Inch): 15; Width (Decimal Inch): 20; Maximum Working Water Pressure: 141.00; Maximum Vacuum Water Pressure: 141.00; Overall Length: 20.00; Phase: 3-