Electronic heating mantle EW-36013-1 series

Accepts 250 to 1000-mL round-bottom flasks saving you money Maximum element temperature of 842°F (450°C) Cool to the touch offers safe handling Built-in energy regulator Flexible coiled heating element wraps the heater around round-bottom flasks to optimize heat transfer. The flask does not come in direct contact with the heating element via a grounded earth screen plus double fuse protection provides maximum safety. Control temperature with a built-in 1 to 10 scale power controller. Powder-coated aluminum housing makes it easy to clean. Two colored lights indicate "power on" and "heat on."