The frameless ECO Door glass covering systems from PAN-DUR for wall multidecks have an energy saving potential of up to 70% on the cabinet. The insulating glass doors are available and can be retrofitted with up to 4 anti-reflective layers. The doors are available as rotating, folding and sliding versions. Door locking “without ancillary means” and a springless self-closing mechanism increase the user friendliness for personnel and customers alike. They can be universally used as initial equipment or for retrofitting to all commonly encountered refrigerated cabinet from well-known manufacturers.