Round Bottom Boiling Flasks Four Neck are widely used in labs for chemical reactions and distillation. The four-necked design provides versatility since different functionalities and applications can be achieved in lab settings. These flasks are employed for various lab activities, such as distillation, refluxing, and multi-tasked setups. Round Bottom Boiling Flask Four Neck is manufactured from Borosilicate Glass which offers excellent resistance to chemical corrosion and thermal shock. Packing: 1Pc/Pk Note: End User Declaration required for the purchase of this product. Other sizes are available as per the table below. Contact us for further information. Item Code Nominal Capacity (ml) Centre Socket Side Socket Approx. overall height (mm) 15.00.10121 250 24/29 24/29 140 15.00.10122 500 24/29 24/29 163 15.00.10123 1000 34/35 24/29 200 15.00.10124 2000 34/35 24/29 240 15.00.10125 3000 34/35 24/29 240 15.00.10126 5000 34/35 24/29 240 15.00.10127 10000 34/35 24/29 15.00.10128 20000 34/35 34/35