White Rubber Turnover septum stopper seal Bung size 14, 19 and 24 flask and bottle stopper

Description:

High quality septa seal turn-over closure with serrated stopper, ideal for air and moisture-sensitive chemistry procedures. Available in 3 sizes, for neck ID 14mm, 19mm and 24mm. After piercing with non-coring needle, the puncture site heals to provide an air- and moisture-tight seal. The closure has a turn-over flange which promotes a double seal in conjunction with annular serrations on the hollow plug. The serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.

Properties:

Material:  White natural Rubber
Size:  14, 19, 24
To fit neck:  14, 19 or 24mm inner diameter