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PYREX™ Class B Flasks with standard taper Stopper

Calibrated “To Contain” at 20°C (68°F)

Manufacturer: corning incorporated  C56412L

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Catalog No. 10-206J


Description & Specifications


Material Pyrex
Bottom Shape Flat
Calibration To contain
Capacity (Metric) 2000mL
Diameter (Metric) Outer 160mm
Diameter (English) Outer 6.3 in.
Graduated Yes
Height (Metric) 38.8cm
Height (English) 15.2 in.
Neck Style Long
Stopper Number 27
Tolerance ±1mL

  • Meet tolerance requirements listed in Class B Volume Tolerances chart
  • Glass stopper
  • Stopper standard taper sizes: 9 (10, 25, 50mL); 13 (100, 200mL); 16 (250mL); 19 (500mL); 22 (1000mL); 27 (2000mL)