Rubber Stopper, #00, solid

Pack of six test tubes.

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Get lab glass test tubes in three sizes: small, large & extra-large. The large and extra-large borosilicate test tubes comes in packs of two, while the small come in packs of six. Bulk pricing discounts apply for them all!

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These #0 rubber stoppers are 13-17 mm diameter. #0 rubber stoppers fit large test tubes.

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30 ml bottle of denatured alcohol. Contains 95% ethyl alcohol, also known as ethanol. Ethanol has many uses. Find the ethyl alcohol formula, density, common uses, and more below!

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Pack of two test tubes.

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Everything you need for test tube experiments! This set contains 6 glass test tubes, a rack, cleaning brush, stoppers, and clamp.

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Use this pencil to mark glassware when doing science experiments.

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Pack of two extra large test tubes, 20 x 150 mm.

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This 30 ml bottle of phenol red is a pH indicator; it turns yellow below 6.8 pH & bright pink above 8.2 pH. Take a look at the table below to discover the phenol red pH indicator formula, density, shelf life, and more!

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Use these PTC paper strips for a heredity taste test. Find out if you can detect bitterness. If so, you might be a super taster!

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