What’s the diameter of the flask opening (I.D.)?

The flask inner diameter is 21mm.

Do these flasks have stoppers? If not, do you sell them?

These flasks do not include stoppers... I did not require sterility, so I am using modified wine corks... Average cork diameter for 750 ml wine bottles will work and readily available...

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EISCO 12PK Erlenmeyer Flasks, 100mL - Borosilicate Glass - Narrow Neck, Conical Flasks

EISCO 12PK Erlenmeyer Flasks, 100mL - Borosilicate Glass - Narrow Neck, Conical Flasks

Product ID: 26727064

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Details

Material
Borosilicate
Capacity
100
Brand
EISCO
Bottom Shape
Round
UPC
849230033835

🔥Heat resistant

🔬100mL capacity

🧪Borosilicate glass

Description

🔍 Elevate Your Experiments with EISCO Flasks!

SAFETY FIRST - Reinforced rim and uniform wall thickness for enhanced durability.
VERSATILE USE - Perfect for professional labs, classrooms, and even home experiments.
UNMATCHED QUALITY - Crafted from heavy-duty borosilicate 3.3 glass for superior strength.
THERMAL RESILIENCE - Withstands high temperatures and thermal shocks effortlessly.
PRECISION MEASUREMENTS - Easy-to-read white enamel graduations for accurate volume tracking.

The EISCO 12PK Erlenmeyer Flasks are 100mL narrow neck conical flasks made from high-quality borosilicate glass, designed for durability and precision. Ideal for professional laboratories, classrooms, and home use, these flasks meet DIN ISO standards and are resistant to high temperatures and thermal shocks.

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