Z167274
Suba-Seal® septa
white rubber, Suba-Seal® 21, fits neck I.D., 12.5 mm
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| Size/SKU | Availability | Price |
|---|---|---|
100 ea | Estimated to ship onMay 26, 2026fromMILWAUKEE | $133.00 |
About This Item
NACRES:
NB.35
UNSPSC Code:
41121800
Material:
white rubber
$133.00
Estimated to ship onMay 26, 2026Details
material
white rubber
feature
fits neck I.D. 12.5 mm
manufacturer/tradename
Suba-Seal® 21
General description
Well-known as the best quality rubber turn-over closure with serrated stopper, Suba-Seal brand is available exclusively from Sigma-Aldrich. Ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal to protect contents of vessel or container from atmosphere.
This closure has turnover flange molded to grip outside of container neck promoting a double seal in conjunction with annular serrations on hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suctions sealing point.
Storage Note for Natural Rubber Septa: Store septa in a closed bag out of sunlight to retard blooming, which is the formation of a whitish film on the surface of the rubber. Blooming is a natural process and does not affect performance. Remove visible bloom by washing or wiping off before use.
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.
This closure has turnover flange molded to grip outside of container neck promoting a double seal in conjunction with annular serrations on hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suctions sealing point.
Storage Note for Natural Rubber Septa: Store septa in a closed bag out of sunlight to retard blooming, which is the formation of a whitish film on the surface of the rubber. Blooming is a natural process and does not affect performance. Remove visible bloom by washing or wiping off before use.
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.
Legal Information
Suba-Seal is a registered trademark of Merck KGaA, Darmstadt, Germany
1 of 1
This Item | |||
|---|---|---|---|
| material white rubber | material blue rubber | material red rubber | material white rubber |
| manufacturer/tradename Suba-Seal® 21 | manufacturer/tradename Suba-Seal® 21 | manufacturer/tradename Suba-Seal® 21 | manufacturer/tradename Suba-Seal® 41 |
| feature fits neck I.D. 12.5 mm | feature fits neck I.D. 12.5 mm | feature fits neck I.D. 12.5 mm | feature fits neck I.D. 20.5 mm |
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