Separating Funnel, made from quality polypropylene. Excellent contact clarity and strength. 250 ml capacity, ungraduated. PTFE Key Stopcock Autoclavable separating funnel with a leak-proof threaded screw cap. 12" long, 3.25" wide 250ml capacity Separating Funnel, made of quality polypropylene. Excellent contact clarity and strength. Autoclavable separating funnel has a leak-proof threaded screw cap. Polypropylene stopcock is fitted with self lubricating PTFE plug, push fitted to the stem of the funnel. Ungraduated. This funnel measures approximately 8" long, and 3.25" wide. Neck diameter measures approximate 0.8". Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.