Separatory funnels made of polypropylene with stopcock and plug made of PTFE TFE and polypropylene screw closure. The phase interface is visible down to the stopcock. Leakproof screw closure. Resists virtually all chemicals, including hydrofluoric acid. Stopcock and plug are easily removed for cleaning, at which point the funnels can be sterilized in an autoclave.

N.B.: Do not autoclave when closed! (Make sure the stopcock or closure is open).