Round bottom pressure flask, with #15 PTFE plug seal top opening. This style also has a side thermowell port to facilitate a thermometer or a temperature probe to measure flask temperature without losing the pressure integrity of the vessel. The flask has a PTFE front-seal plug with FETFE O-Ring for better sealing.
Flasks have a pressure rating of 60PSI at 120 Deg C. Flasks are tested at 1.5X for pressure ratings. Always wear protective eyewear and work behind shields when using any pressure vessel.