Flask, Buckner, Filtration Bolt Neck

These flasks with tabulation are blown in special mold, in shape designed to give maximum mechanical strength. For convenience, these flasks are graduated to show approximate capacity. The neck finish affords an excellent foot for rubber stoppers. Tabulation O.D. on sizes up to 100mL is 10.0mm. Tabulation O.D. for 2000mL and 4000mL is 12.5mm.