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Suba•Seal brand is well-known as the best quality turn-over closure
with serrated stopper.
Here at Sigma-Aldrich we are pleased to confirm that we can supply genuine Suba•Seal products anywhere in the world.
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And we have increased your choice of colours, to give you more options to colour-code your applications, as well as offering a silicone rubber version for higher temperature use.
Check out the product tables below for more information to help you choose the best Suba•Seal closure for your application. Click the product number links to see current price and stock availability (you must be registered and logged in to our Web site to obtain all this information).
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Suba•Seal rubber septa
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 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.
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Suba•Seal silicone rubber septa
Good for high heat applications (up to 200°C continuous), improved chemical resistance compared with natural rubber and autoclavable for sterile uses. 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 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.
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Suba•
Seal No. |
Fits neck i.d. (mm) |
Dimensions
(mm) |
Use with |
Silicone
rubber
(clear) |
Pkg |
| A |
B |
| 9 |
8.0 |
8.6 |
9.7 |
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Z279730 |
25 |
| 25 |
14.0 |
14.1 |
12.5 |
14/20 joints |
Z279749 |
25 |
| 33 |
17.5 |
18.0 |
12.7 |
Sure/Seal bottles |
Z279757 |
25 |
| 37 |
19.0 |
20.4 |
15.7 |
19/22 joints |
Z279765 |
25 |
| 45 |
22.0 |
23.0 |
20.4 |
24/40 joints |
Z279773 |
25 |
| 57 |
27.0 |
28.3 |
20.5 |
29/42 joints |
Z279781 |
25 |
| *Yellow shading represents updated measurement from previous catalog. |
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