Labware

Suba•Seal rubber septa

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.

 

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).
 

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.

 
Suba•
Seal No.
Fits neck i.d. (mm) Dimensions
(mm)
Use with White
rubber
Red
rubber
Green
rubber
Blue
rubber
Grey
rubber
Pkg
A B
9 8.0 8.6 9.7   Z167231 Z124559       100
13 9.5 9.6 9.3 10/30 joints Z167258 Z124567       100
17 11.0 11.6 8.2   Z167266 Z124575       100
21 12.5 13.3 9.6   Z167274 Z124583       100
25 14.0 14.1 12.5 14/20 joints Z167282 Z124591 Z648876 Z648906 Z648930 100
29 16.0 16.7 14.6   Z167223 Z124605       100
33 17.5 18.0 12.7 Sure/Seal bottles Z167290 Z124613       100
37 19.0 20.4 15.7 19/22 joints Z167304 Z124621 Z648884 Z648914 Z648949 100
41 20.5 21.3 16.1   Z167312 Z124648       100
45 22.0 23.0 20.4 24/40 joints Z167320 Z124656 Z648892 Z648922 Z648957 100
49 24.0 25.2 20.7   Z167339 Z124664       100
53 25.5 26.7 20.9   Z167347 Z124672       100
57 27.0 28.3 20.5 29/42 joints Z167355 Z124680       100
61 29.0 30 23.7   Z558206 Z558192   Z558338   10
*Yellow shading represents updated measurement from previous catalog.
 

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.

 
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   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.