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Z512141

Sigma-Aldrich

Serrated natural rubber septa

white rubber, bottom O.D. 23 mm, fits neck I.D., 20.5 mm, ST/NS: 24/40

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eCl@ss:
32119211
NACRES:
NB.35

material

white rubber

usage

ST/NS: 24/40

feature

fits neck I.D. 20.5 mm

packaging

package of 100

bottom O.D.

23 mm

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This Item
Z512125Z512656Z512214
vibrant-m

Z512141

Serrated natural rubber septa

vibrant-m

Z512125

Serrated natural rubber septa

vibrant-m

Z512656

Serrated natural rubber septa

vibrant-m

Z512214

Serrated natural rubber septa

feature

fits neck I.D. 20.5 mm

feature

fits neck I.D. 12.5 mm

feature

fits neck I.D. 9.5 mm

feature

fits neck I.D. 17.5 mm

usage

ST/NS: 24/40

usage

ST/NS: 14/20

usage

-

usage

ST/NS: 19/22

packaging

package of 100

packaging

package of 100

packaging

package of 100

packaging

package of 100

bottom O.D.

23 mm

bottom O.D.

14.5 mm

bottom O.D.

11.5 mm

bottom O.D.

19.5 mm

General description

Natural rubber septa/sleeve stoppers are used as temporary closures in chemistry, pharmaceuticals, research and development, and biology. These commercially available septa are developed for general applications and are mainly used in labs as closures for glassware, tubes, and cannulation of air-sensitive chemicals.
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.

Features and Benefits

  • Precision fit
  • Non-contaminating
  • Safety and performance

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25G
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1000309185

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