MVE Cryopreservation Systems are designed to be used for either vapor or liquid storage. A wide neck opening and stainless steel construction provide the most durable environment for your biological samples. With advanced features and storage from 3,200 to 39,000 vials, the MVE series is the choice of laboratories worldwide. The MVE Series freezers are designed primarily for liquid phase storage. If vapor phase storage is required, ask your distributor about the vapor storage accessory package.