2L Reaction Vessel, Jacketed, 150mm Schott O-Ring Flange, 3/4" Beaded Pipe Inlet/Outlet, CG-511-02 Drain Valve. Features: ¿ Chemically Resistant Perfluoro O-Rings On Drain Valves¿ Graduation Scale On Both Sides Showing Approximate Volume¿ Sidearm on Lower Drain Valve Can Be Used With a Standard 1/2 or 3/4in TFE, PFA or PP Compression Fitting¿ All Vessels Are Serial Numbered¿ GL Thread Inlet/Outlets Are Supplied With Removable High Temperature PFA Hose Connections And PPS Screw Caps¿ 3/4in Beaded Pipe Inlet/Outlets Are For Use With CG-1968-70 Couplings, CG-1969-A-03 Or CG-1964-42 Adapters