Distilling round-bottom flask coated with Ace Instatherm. Designed to operate up to 360 & deg; C, heating response time is very rapid, (5° per minute), with very low thermal lag. Has vertical standard taper reinforced outer center neck and two angled standard taper reinforced outer side necks. Three-prong connector plug is designed to work with Ace temperature controllers where the output voltage can be automatically limited to match flask. Flask can also be matched with ACE temperature thermocouple sensors for complete automatic operation.