The Corning 6400 Pyrex 500 ml Separatory Funnel is a high-quality, American-made glassware piece designed for laboratory use in the medical, research, and industrial sectors. With a 500 ml capacity, this funnel is perfect for separating and collecting liquids in various laboratory experiments and procedures. The Corning brand is known for its durable and reliable products, making this separatory funnel a valuable addition to any laboratory setting.