All Star Regenerative Air Blowers; Inlet Size: 1"; Outlet Size: 1"; Horse Power: .25; Amperage Rating: 0.9000; Cubic Feet Per Minute: 38 SCFM; Height (Inch): 10; Width (Decimal Inch): 9; Maximum Working Water Pressure: 28.00; Maximum Vacuum Water Pressure: 28.00; Overall Length: 10.00; Phase: 3-