Large Rubber Stoppers

Large Rubber Stoppers

There are many types and sizes available in rubber stoppers. From size 0 to size 25, there are small and large rubber stoppers for all kinds of beakers, flask, funnels, and test tubes. The large rubber stoppers are available in different materials like Silicone, Neoprene, EPDM, and natural pure gum rubber. Also, these large rubber stoppers come in various designs with one or two holes or solid designs. 
If you need a new and durable plus reliable seal or cap for a test tube, beakers, or flasks, you don’t have to look anymore. We bring you the best and most durable large rubber stoppers. You can check and choose between the fantastic and wide variety of small and large rubber stoppers and corks. A large solid rubber stopper is used for sealing purposes. A rubber stopper with holes is used to connect joints and for air circulation. Containers’ sizes and their mouth sizes differ, and we are sure you can easily find your required cork or small or large rubber stopper. The key to choosing the best large rubber stopper is to select a rubber stopper with the largest bottom size but smaller than the hole you are trying to seal. It should be smaller than your hole’s diameter. All the rubber stoppers have to be manufactured with the help of the highest quality material to use for years unless you lose them. All these large rubber stoppers are definitely going to serve for all coming years because they are highly durable.
All these large rubber stoppers are made for excessive use and to withstand any amount of heat. Large rubber stoppers do the work they are designed to do. We recommend choosing a rubber stopper according to your needs and size. Follow the size guides to take help in buying the exact fit. 

All dimensions are in mm​

Stopper & Plug Size Catalog

Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.

Custom colors are available to your Pantone color code. Include the code in your inquiry.

Blind-Hole · RSTTapered · RSAUndercut · RSBT-Shaped · RSD

RST T-Shaped Plugs

Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

Dimension guide

Product appearance

PartNo.	A（mm）	B（mm）	C（mm）	D（mm）	E（mm）
RST2.5-5.5-5.3	2.5	5.5	5.3	2	0
RST2.7-5.5-5	2.7	5.5	5	2	0
RST3-4.3-4.5	3	4.3	4.5	0.8	0
RST3-7-7	3	7	7	2.2	0
RST3.3-6.5-6	3.3	6.5	6	1.5	0
RST3.5-6.5-6	3.5	6.5	6	2	0
RST3.8-7-10.5	3.8	7	10.5	1.5	0
RST3.8-7-7	3.8	7	7	1.5	0
RST3.8-7-6	3.8	7	6	1.5	0
RST4-7.5-6	4	7.5	6	2	0
RST4-9.5-7	4	9.5	7	2.5	0
RST4.3-8-6	4.3	8	6	1.5	0
RST4.5-7.5-6	4.5	7.5	6	2	0
RST4.8-6.8-3.6	4.8	6.8	3.6	0.9	0
RST4.8-9-7	4.8	9	7	1.5	0

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

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