Series 4660 General Purpose Vessels 1 & 2 GallonThe Series 4660 General Purpose Vessels are available in either a 1 Gallon (3.75 L) or 2 Gallon (7.5 L) capacity. Maximum temperature for these vessels is 350 °C with a maximum pressure of 1900 psi (130 bar). A Split Ring closure with 10 Cap Screws secures the head which allows a maximum of 10 openings. The Series 4660 Vessels can be configured with either a fixed head on a floor stand or as a moveable head vessel on a moveable cart. An optional pneumatic lift is available on the floor stand model.