250mL Round-Bottom Boiling Flask with 24/40 Joint - Various Brands

Price is for one flask. Various brands are available - see photos. Please specify if you have a preference when ordering.

The Corning 4320-250 PYREX / 70320 PYREX Vista reusable boiling flask has a capacity of 250mL, with a height of 140mm and an outer diameter of 83mm. Round bottom flask has a full length outer 24/40 standard taper joint, but with a shorter neck. Made of borosilicate glass Code 7740. Heavy duty flask features walls which are 25-30% thicker than the standard version providing increased mechanical strength. Normal working temperature for PYREX boiling flasks is 230°C. (QTY: 27)

The Kimble 25285-250 KIMAX 250mL short neck round bottom boiling flask has a short neck with 24/40 ground glass joint. Designed from ASTM specification E1403, Type II, Class 3 requirements. 140mm height x 83mm outer diameter (QTY: 8)