Ace Glass 6944-16 500 mL three-neck round-bottom flask with three vertical 24/40 standard taper outer joints, including a center neck and two side necks. This flask is suited for organic synthesis, reflux, distillation, addition funnel setups, inert-gas/vacuum manifolds, stirring, and multi-port reaction assemblies. Fisher’s description notes the three vertical neck layout and a flare-out below the center joint to help with cleaning and removal of stir blades. Used laboratory glassware; inspect photos for exact joint condition, chips, scratches, residue, and overall cleanliness before purchase.
