Omsons Erlenmeyer Flask with 24/40 Joint and StopperOmsons Erlenmeyer flasks with 24 40 outer joint and stopper are used for mixing, heating, reaction work, and solution preparation in compatible laboratory glassware assemblies. Select by capacity and pack quantity. Key Details Product Type: Erlenmeyer flask with socket Joint Size: 24 40 outer joint Closure: Interchangeable stopper Glass Type: Borosilicate 3. 3 glass Capacity Options: 250 mL, 500 mL, and 1000 mL Pack Quantity: Listed by size option