This Series O heating mantle is a hemispherical style that covers only the bottom half of the flask. This allows full view of the flask contents. The mantle accommodates single- and multi-neck flasks. Fabric exterior provides effective heating in a space saving configuration. Fabric interior to softly nest glass vessels and reduce the chance of thermal shock. Withstands 400°C (752°F) internal operating temperature, enough power for most applications. Ideal for bottom holes, viewing ports, and other tubulations. These mantles should be used with the Series O supports. *Temperature controller and Series O support sold separately*
