FreeZone 12 Liter Console Freeze Dryers with Stoppering Tray Dryers are designed for lyophilizing moderate to large loads and stoppering vials or serum bottles under vacuum. The console features a front viewing window and interior space for a vacuum pump (sold separately). They feature a brushed stainless steel and glacier white, powder-coated steel exterior, hot gas defrost, side-mounted USB port and rear-mounted Ethernet connection.