PYREX 250mL Heavy Wall Filtering Flasks with Repla

Corning (This is the suggested replacement for 5342-250)These 250mL PYREX® heavy wall flasks have seated a bent, removable plastic tubulation in a grommet. Should the flask be upset, the grommet acts as a shock absorber. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers and uses a No. 6 rubber stopper. Tubulation O.D. is 12.5mm - COG