Laboy HMF011424 Glass 500 mL 3 Neck Round Bottom Boiling Flask with 19/22 Center and Side Joints Angled

This multi-neck flask has three standard taper ground joint. With 2 necks having the same joints Laboy glass flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.