Rubber Stoppers / Caps
When looking for rubber stoppers of different sizes and with or without holes go no further. We offer nothing but the highest quality pharmaceutical grade rubber stoppers available on the market.
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Size #14 Rubber Stopper
- Top diameter 3-9/16". Bottom diameter 3".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #13.5 Rubber Stopper
- Top diameter 3". Bottom diameter 2-7/16".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #13 Rubber Stopper
- Top diameter 2-11/16". Bottom diameter 2-5/16".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #12 Rubber Stopper
- Top diameter 2-9/16". Bottom diameter 2-1/8".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #11.5 Rubber Stopper
- Top diameter 2-1/2". Bottom diameter 2".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #11 Rubber Stopper
- Top diameter 2-3/16". Bottom diameter 1-7/8".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #10.5 Rubber Stopper
- Top diameter 2-1/8". Bottom diameter 1-3/4".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #10 Rubber Stopper
- Top diameter 2". Bottom diameter 1-11/16".
- Fits our 3, 5, and 6 gallon plastic carboys.
- Available both with and without holes.
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Size #9.5 Rubber Stopper
- Top diameter 1-3/16". Bottom diameter 1-9/16".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.
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Size #9 Rubber Stopper
- Top diameter 1-3/4". Bottom diameter 1-1/2".
- Made of pharmaceutical-grade, tan color rubber.
- Available both with and without holes.

