Rubber Stopper, #8, 2-hole

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.

These # 6.5 rubber stoppers are 27-34 mm diameter with two 5 mm diameter holes.

42-50 mm diameter. Fits many vacuum bottles.

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

These #9 rubber stoppers are 37-45 mm diameter with two 5 mm diameter holes.

A 500 ml PYREX brand narrow mouth Erlenmeyer flask with a heavy-duty rim. This high-quality flask is made from low expansion, Type 1, Class A borosilicate glass & is used in professional laboratories throughout the world!

These #8 rubber stoppers are 33-41 mm diameter.

This 1000ml PYREX narrow mouth Erlenmeyer flask with a heavy duty rim is made from low expansion, Type 1, Class A borosilicate glass that can be heated directly in an open flame.

5mm glass tube fit in all rubber stoppers & attach to 4.8 mm plastic or rubber tubing. Pack of two.

#7 rubber stopper with two 5mm holes.