PYREX® 4L Heavy Wall Filtering Flasks with Sidearm Tubulation by Corning Life Sciences
These PYREX® 4L flasks have sidearm tubulations and are blown in special molds designed to give maximum mechanical strength. For convenience, the flasks are graduated to show approximate capacity. The neck finish affords an excellent fit for rubber stoppers. Tubulation O.D. is 12.5mm.