Glass Separatory Funnels measure out liquids into different containers such as beakers and Erlenmeyer flasks. Stopcock bores, body openings and stems of Separatory Funnels are carefully aligned to provide smooth, even liquid flow with fast cut-off. Conical shape makes them easy to hold. Include PTFE key and stopcock and a polyethylene stopper. Choose 1000mL or 2000mL capacity.