Features: 1. Heavy duty stainless steel construction plus transparent lid 2. 220v/60hz/1ph 3. Lid hold-down device 4. Equip with 6m3/h vacuum pump to have very fast cycle time 5. 20 programs digital control panel with motor over warning, oil change indicated Options: 1. Extra seal bar to have double produce capacity 2. Soft air 3. Gas flushing 4. High pressure seal 5. Top and bottom seal