Filtering Flask, Borosilicate Glass, 500

Borosilicate glass filtering flask with 5000ml capacity. Heavy-walled flask features a heavy-duty rim and bolt neck ideal for vacuum filtration. Graduations are printed in durable white enamel. United Scientific flasks deliver an unbeatable combination of thermal shock resistance and physical strength. A vacuum can be applied in 5-minute intervals. When restarting the vacuum, make sure to release the current vacuum to ensure proper pressure management. The pressure of the air that is removed should never exceed 600 mm Hg at any point in time.