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Key Documents

Z512699

Sigma-Aldrich

Serrated natural rubber septa

blue rubber, bottom O.D. 18 mm, fits neck I.D., 16.0 mm, Sure/Seal

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About This Item

UNSPSC Code:
41121800
NACRES:
NB.35

material

blue rubber

usage

Sure/Seal

feature

fits neck I.D. 16.0 mm

packaging

package of 100

bottom O.D.

18 mm

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General description

Closure has a turnover flange molded to grip outside of container neck, promoting a double seal in conjunction with annular serrations on a hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suction sealing point.
Note: For extra security when using large bore transfer needles, fasten septum to bottle or flask opening with a wrap-it tie. See ties and accessory tool listings on next page.

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