These 500 ml flat bottom boiling flasks are crafted from high-quality borosilicate glass, renowned for its exceptional heat resistance. Featuring a narrow mouth, tooled top finish, and thick walls, these flasks are designed for durability and precise performance in various lab applications. Ideal for both home school and classroom labs, they are sold in a convenient pack of 12. This size flask pairs with Size 6.5 Rubber Stopper (SKU: RS-6.5).
 
Features:
 
Borosilicate Glass: High resistance to thermal shock a