Corning® PYREX® Class A Mixing Volumetric Flasks

The upper bulb, located between the stopper and the capacity graduation is approximately one-tenth the flask rated capacity. The 2 L size upper bulb is only one-twentieth capacity. The additional bulb assists in the mixing of liquids or powders when shaken.
Image(s) are representative of the product group and not necessarily the individual product.

Capacity (mL): 100
Tolerance +/- mL: 0.08
Approx OD x Height (mm): 60 x 185
Stopper No.: 13

Capacity (mL): 250
Tolerance +/- mL: 0.12
Approx OD x Height (mm): 78 x 256
Stopper No.: 16

Capacity (mL): 500
Tolerance +/- mL: 0.20
Approx OD x Height (mm): 100 x 322
Stopper No.: 19

Capacity (mL): 1000
Tolerance +/- mL: 0.30
Approx OD x Height (mm): 125 x 323
Stopper No.: 22

Capacity (mL): 2000
Tolerance +/- mL: 0.50
Approx OD x Height (mm): 158 x 397
Stopper No.: 27