SAF Wärmetechnik LabHEAT KM-M 20. Housing heating element KM-M for 20.000 ml round-bottomed flask Ø 345 mm, flexible glass silk radiator, outer sheath made of a plastic-coated, chemical-resistant metal housing with built-in mains and heating zone switch, rated power 2000 W, 2 heating zones, max. Heating conductor temperature 450 ° C, 1.5 m mains cable with safety plug and personal safety switch, rated voltage 230 V AC. UPGRADE.