Corks, No. 6, 10 pack

These large No. 9 lab-grade corks fit 1-2 liter plastic soda bottles.

These No. 4 lab-grade corks fit our large 16 mm x 150 mm test tubes.

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

You will always have the right size rubber stopper on hand with this 2 lb package of assorted solid, 1-hole and 2-hole stoppers ranging in size from #00 to #8. You get 60 stoppers total.

Pack of two test tubes.

These No. 2 lab-grade corks fit our small 13 mm x 100 mm test tubes.

Handheld clamp holder for heating a single test tube over a flame.

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!

These No. 2 rubber stoppers are 16-20 mm diameter with two 3 mm diameter holes.

These No. 14 lab-grade corks fit Pyrex 250 ml flasks and most 500 ml flasks.