Chemglass CG-1518-06 heavy-wall 500 mL 2-neck round bottom flask with standard taper 24/40 outer joints on both the center neck and straight/vertical side neck. This 2-neck RBF is useful for organic synthesis, reflux, distillation, reaction setup, heating/stirring, inert gas/vacuum manifold work, addition funnel or condenser setups, solvent boiling, and general chemistry lab glassware applications where a second access port is needed for a thermometer adapter, septum, gas inlet, pressure equalizing funnel, or condenser. Manufacturer catalog description identifies this flask as a heavy-wall round bottom 2-neck flask, 500 mL capacity, 1-CN 24/40 outer and 1-SN 24/40 outer. Used surplus lab glassware; inspect photos for condition, cleanliness, joint wear, scratches, residue, chips, or cracks. Includes flask only; no stoppers, adapters, clamps, mantle, or accessories included unless shown.
