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PYREX™ Squibb Pear-Shaped Separatory Funnels with Rotaflo PTFE-Plug Stopcock

Pear-shaped with standard taper ground neck, offset PTFE-plug stopcock and all-glass PYREX stopper

Manufacturer: corning incorporated  C6302125

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Catalog No. 10-437-6A


Description & Specifications


Stopper Number 22
Capacity 4.22 oz., 125mL
Diameter (English) Outer Stem 0.39 in.
Diameter (Metric) Outer Stem 1cm
Height (English) 11.8 in.
Height (Metric) 30.1cm
Length (English) Stem 2.5 in.
Length (Metric) Stem 65mm
Material Pyrex™
Diameter (English) Outside 2.36 in.
Capacity (English) 4.22 oz.
Diameter (Metric) Outside 6cm
Capacity (Metric) 125mL
For Use With (Application) For replacement glass stoppers
Stopper Material Polyethylene
Quantity Each
Product Type Squibb Separatory Funnel

  • Rotaflo (“Slammer”) stopcock uses cylindrical PTFE plug in a glass barrel
  • Knurled knob operates plug against the valve seat, providing precise control of flow
  • Won't freeze; doesn't require lubrication
  • No gaskets or O-rings are used
  • Comes with both a polyethylene stopper and a hollow PYREX stopper with a closed bottom