All Star Regenerative Air Blowers; Inlet Size: 2"; Outlet Size: 2"; Horse Power: 2.5; Amperage Rating: 7.7000; Cubic Feet Per Minute: 155 SCFM; Height (Inch): 16; Width (Decimal Inch): 16; Maximum Working Water Pressure: 89.00; Maximum Vacuum Water Pressure: 85.00; Overall Length: 16.00; Phase: 3-