This 500mL cylindrical dropping funnel is made from borosilicate glass with an open top and a PTFE key stopcock for precise, drop-wise dispensing of liquids. The glass construction provides transparency for high visibility of contents. The funnel measures 14 inches in length and 2.5 inches in diameter. The top has an outer diameter of 2.65 inches and inner diameter of 2.36 inches. The borosilicate glass is autoclavable with heat tolerances including a Strain Point of 515°C, Annealing Point of 565°C, and Softening Point of 820°C.