The Glass Erlenmeyer Flasks – Narrow Mouth are designed to give the best combination of thermal shock resistance and physical strength. These durable flasks feature heavy-duty rims and graduations in durable white enamel, and have a marking spot for easy identification. Manufactured from low-expansion Type 1, Class A Borosilicate 3.3 glass that complies with ASTM E438 Standard Specification for Glasses in Laboratory Apparatus.
Available by size or in a set. The convenient set of 5 consists of one each of 50ml, 125ml, 250ml, 500ml, and 1000ml flasks.
ASTM E438 Class A borosilicate glass
Rugged flasks have heavy-duty rims
Graduated, with marking area for easy identification