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PYREX™ Heavy-Wall Boiling Flasks, Round Bottom

Feature 25 to 30% greater wall thickness than standard flasks for mechanical strength

Manufacturer: corning incorporated  C4320C500

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Catalog No. 10-068-1D


Description & Specifications


Material Borosilicate Glass
Bottom Shape Round
Diameter (English) Outer 4 in.
Capacity (Metric) 500mL
Diameter (Metric) Outer 102mm
Height (English) 6.2 in.
Height (Metric) 16cm
Neck Style Short
Standard Taper Joint 24/40
Temperature (English) Operating 446°F
Thickness >25 to 30%
Temperature (Metric) Operating 230°C

  • Single-neck, heavy-duty boiling flasks with short necks and standard taper joints
  • Borosilicate glass
  • No increase in outside diameters
  • Fit standard heating mantles
  • One per case