Omsons Pear-Shaped Round Bottom Flask with 24/40 JointOmsons pear shaped round bottom flasks are used for rotary evaporation, solvent evaporation, sample concentration, and small volume distillation work. Select by capacity and pack quantity. Key Details Product Type: Pear shaped round bottom flask Joint Size: 24 40 outer ground glass joint Capacity Options: 50 mL, 100 mL, 250 mL, 500 mL, and 1000 mL Shape: Pear shaped round bottom Pack Quantity: Listed by size option Best For Rotary evaporation Solvent