These narrow mouthed flasks are made of clear borosilicate 3.3 glass.

• Uniform wall thickness
• Beaded rim
• Graduated
• Type 1 glass

Borosil® flasks are designed to deliver a combination of thermal shock resistance along with physical strength and resistance to chemical attack. These flasks comply with IS 1381 (Part I), DIN/ ISO 1773 and are manufactured to withstand the demands of the modern laboratory.

The uniform wall thickness distribution makes these flasks ideal for heating. The conical form makes these flasks also suitable for mixing liquids. The easy-to-read scale and large labeling field helps to ensure for easy marking. 25 ml to 5 L are graduated in a ceramic white color.