Heating mantles are specifically designed to heat flasks with a round bottom. We offer fabric caps for use on ring racks, soft-sided table models and metal-encased models. Sizes range from 50 ml to 6,000 ml. Our spherically shaped, knitted fiberglass baskets provide stability and safety while ensuring optimal contact surface. The high temperature capacity (up to 842°F/450°C) provides the versatility needed to perform a wide range of experimental processes.