Self Venting Funnel With Insulated Handle For Dewars And Dry Shippers

The Self Venting Funnel with Insulated Handle is a specialized, safe-handling laboratory accessory designed specifically for the controlled transfer of liquid nitrogen into 5L and 10L dry shippers and standard cryogenic dewars. Measuring approximately 8-3/8″ in top diameter and 8-3/4″ in height, it features a critical 1″ vent diameter that allows expanding nitrogen gases to escape safely during the filling process, effectively preventing hazardous splashing and internal pressure buildup. The built-in insulated handle ensures the user's hands remain protected from extreme cold, making it an essential, reliable tool for researchers routinely preparing high-capacity transport vessels and storage dewars for structural biology, cell archiving, and cryo-EM sample logistics.