Corning These 125 Ml Pyrex Pear-Shaped Glass Separatory Funnels Have Ptfe (Polytetrafluorethylene) No.

Corning
These 125 Ml Pyrex Pear-Shaped Glass Separatory Funnels Have Ptfe (Polytetrafluorethylene) No. 2 Product Standard Stopcocks And No. 22 Standard Taper Polyethylene Stoppers. The Stopper Is Made With A Closed Bottom And Is Of Linear High Density Polyethylene To Conform To Standard Taper Stopper Dimensions. The Ptfe Plug Fits Into The Micro-Finish Barrel. The Plug Also Reduces Freezing Problems And Grease Contamination. For Replacement Polyethylene Standard Taper Stoppers, See No. 7624; For Ptfe Stopcock Assemblies, See No. 7681. - COG