Standard receiving flask for all rotary evaporators. Fits all Rotavap Models. Similar to 6726 except, with outer jacket for cooling/heating of contents. Inlet/outlet connections are 28/15 o-ring ball joints and include 7855-726 FETFE o-rings, size -116. Top and bottom joints are DN25. Bottom inner ball joint includes 7855-840 CAPFE (PTFE-encapsulated silicone rubber) o-ring, size -217. Side joint is SVL-22 thread, with 7647-40 black vent cap included.