Complete, one-piece, jacketed flask, pressure reactor system designed to perform low to moderate positive pressure reactions, synthesis and catalysis. Reactor capacities range from 500ml to 5000ml and use Ace-Threds to achieve a leak-tight system. One-piece design features a 25mm center opening and has a higher allowable pressure rating than our two-piece design. Rated 45 PSI at 100 degrees centigrade. Systems are available for either mechanical or magnetic stirring. Jacket is availble with 28/15 O-Ring ball joint or Ace-Thred inlets/outlets.