Borosilicate glass, round-bottom vessel

Supplied with a standard taper 24/40 center neck and two standard taper 24/40 side necks. Fourth neck is #25 Ace-Thred on 500 mL for use with bushing and o-ring #25; #36 Ace-Thred on 1000 and 2000 mL sizes for use with #36 bushing and o-ring to make a leaktight compression seal with all horns and 25 or 35 mm # 36 slide adapter. Center neck can be used for mechanical stirring if needed. Stated capacity is without horn. Bushing and O-Ring sold seperately.