Shop Fox M1114 Benchtop Sandblaster Access Doors: (2) 16-Inch wide Window: 9-Inch by 10-3/4-Inch Abrasive Capacity: 10-Pound Air pressure requirement: 60-100 psi Overall size: 24-1/2-Inch by 21-1/8-Inch by 19-1/2-Inch