The smooth automatic pressing and push button activation provides a productive, fatigue-free operation. Automatic Presses – For these presses, you will need to separately purchase a small compressor. Size/model of air compressor needed for the air operated heat press: DC16AP requires- 5 gallon, 100psi minimum, ½ cfm small compressor or Greater is fine. For all the same features and possibilities as the Manual DC16, with fully automatic air operated acton, the DC16AP is the ideal solution. Weight: 140 lbs Electrical: 1500W / 12A / 120V Dimensions: 23"L x 23"W x 23"H (add $35 for 220V international) Click here for all George Knight Technical Documents