DURAN® Stainless Steel Laboratory Bottles are designed for safe, sanitary storage of high value liquids. They are manufactured from corrosion resistant AISI Type 316L (1.4404) stainless steel and are hygienically constructed with all welded seams. The smooth inner surface corresponds to IIIc (DIN 17441/ASTM A480 2B) and is unpassified. The inner surface is rounded for ease of cleaning with a polished and brushed, durable exterior surface. The bottle has a GL 45 thread with built-in pouring lip and a rim for tamper-evident closures. These stainless steel bottles are autoclavable 121oC, Dry Heat, EtO, gamma radiation or chemical cleaning (max use temperature 500oC). Bottle and closure supplied separately.Manufacturer's Lead Time May Apply.