Pope 8621 Dewar Vacuum Flask (1900mL)

Pope Lab Grade Dewars are rated the most efficient glass Dewars in the World! This superior ranking is due to rigid quality controls in manufacture and a number of outstanding design and manufacturing features.

Efficiency assured by rigid bakeout and evacuation control (evacuated to 10-5 torr or better).

Evacuation tip completely shielded for increased protection.

Weighted bases on all models for stability

No pads between walls on cylindrical Dewars eliminating this heat transfer potential

Stopper tops off Dewars to minimize evaporation (NOT included).

The protective aluminum bases on both styles extend the full height of the Dewars. Note that protected vacuum tip-off tubulations are offset to the side to minimize space between the Dewar bottoms and magnetic stirrers. The hemispherical line has been expanded to provide additional Dewars to fit larger flask sizes.