Rubber Stopper, #10, 1-hole

These #8 rubber stoppers are 33-41 mm diameter with one 5 mm diameter hole.

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42-50 mm diameter. Fits many vacuum bottles.

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These #5 rubber stoppers are 23-27 mm diameter with one 5mm diameter hole. No. 5 rubber stoppers fit Pyrex 125 ml Erlenmeyer flasks.

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These #10 rubber stoppers are 42-50 mm diameter with no holes. #10 rubber stoppers fit 2000 ml Erlenmeyer flasks and many thermos vacuum bottles.

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These #3 rubber stoppers are 18-24 mm diameter with one 4 mm diameter hole.

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These 2000 ml Home Science Tools Erlenmeyer flasks are made of high-quality borosilicate glass that can be heated directly in an open flame.

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These #9 rubber stoppers are 37-45 mm diameter with one 5 mm diameter hole.

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#7 rubber stopper, 1-hole, fits 500ml Erlenmeyer flasks or 250 ml filtering flasks.

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These #9 rubber stoppers are 37-45 mm diameter with no hole.

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This 5 mm (3/16") flexible rubber tubing is the right size for connecting 5-6 mm glass tubes in stoppers or other small diameter fittings.

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