Thermo Scientific Nalgene Plastic Separatory Funnels are a combination of Teflon and Tefzelmaterials make these Nalgene funnels break-resistant, transparent, non-stick for easy cleaning, non-wetting for complete draining, and resistant to the chemicals typically used in separatory funnels. The funnel body is Teflon FEP, the stopcock is Teflon TFE, and the screw closure is Tefzel ETFE.
These funnels are suitable for use with mechanical shakers, if a hose clamp is placed over the stopcock insertion area. The closure and stopcock are leak-resistant. The funnels are autoclavable except for the stopcock assembly, which can be chemically disinfected. Phthalate-free.
Plastic funnels are an excellent alternative to more expensive and fragile glass funnels
Transparency makes it possible to view phase separations of colorless liquids