MVE Cryo-Preservation Systems are designed for the user requiring either vapor or liquid storage. A wide neck opening and stainless steel construction provides 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 611 & 1411 Series Freezers are designed primarily for liquid phase storage. If vapor storage is required, ask your distributor about the vapor storage accessory package.