Glass Separatory Funnel: PTFE Stopcock: 250ml

 

250 ml conical separatory funnel is made of hand blown borosilicate (heat resistant) glass with PTFE stopcock (valve) and stoppers. PTFE stopcocks are less likely to seize up than glass to glass fittings and do not require expensive lubricant therefore reducing the risk of contamination. These are hand calibrated and accurate to better than 1% total volume. Stem Length 60mm, OD 9mm.