A cylindrical separatory funnel is a laboratory glassware designed for the separation of immiscible liquids based on differences in their densities. Unlike the more common pear-shaped funnels, the cylindrical shape provides a larger surface area for liquid-liquid separation, making it highly efficient and easy to observe phase boundaries.

Constructed from high-quality borosilicate glass, the funnel is equipped with a ground glass stopper at the top and a stopcock at the bottom for controlled release of liquids. It is widely used in chemical laboratories, educational institutions, and research facilities for extraction, solvent partitioning, and purification processes.