The 125mL PREMIUM "A" Separatory Funnel by Wheaton is a high-quality lab equipment made of thick glass with a PTFE stopcock and 2x 24/40 joints. This separatory funnel is designed for efficiently separating immiscible liquids and is ideal for use in various industries, such as healthcare and dental. With its reliable brand reputation and specific model, researchers and professionals can trust in the performance and durability of this product for their laboratory needs.