500ml 4-neck flask 24/40 necks

European style flask with tapered walls and a shallow hemispherical bottom for more efficient mechanical or magnetic stirring. With standard taper outer joints on center and side necks and a #7 Chem-Thread for insertion of thermometers or bleed tubes having an O.D. between 4 and 7mm. Flasks are available with joint configurations other than those listed, please call for pricing.