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Rubber Stoppers


Use these sturdy rubber stoppers and corks to contain liquids in test tubes and flasks. They fit tightly to prevent chemical leaks. Our 5 mm glass tubing fits in the one- or two-hole rubber stoppers. For small test tubes use #00 stoppers. Use #0 for large test tubes, and #1 for extra large. Use #6 stoppers for 250 ml flasks.

Save when you buy 10 or more of one of these stoppers!

 
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Rubber stopper, #3, solid
Rubber stopper, #3, solid 		Rubber stopper, #00, 1-hole
Rubber stopper, #00, 1-hole 		Rubber stopper, #00, 2-hole
Rubber stopper, #00, 2-hole 		Rubber stopper, #00, solid
Rubber stopper, #00, solid

$0.45
These #3 rubber stoppers are 18-24 mm diameter. #3 rubber stoppers fit lite... more

$0.75
These #00 rubber stoppers are 10-15 mm diameter with one 3mm diameter hole.... more

$0.75
These #00 rubber stoppers are 10-15 mm diameter with two 3mm diameter holes... more

$0.75
These #00 rubber stoppers are 10-15 mm diameter. #00 rubber stoppers fit sm... more
Cork, size 2, pack of 2
Cork, size 2, pack of 2 		Cork, size 9
Cork, size 9 		Rubber stopper, #6-1/2, 1-hole
Rubber stopper, #6-1/2, 1-hole 		Rubber stopper, #6-1/2, 2-hole
Rubber stopper, #6-1/2, 2-hole

$0.75
Diameter of 12-13 mm. Fits small test tubes.

$0.75
Diameter of 18-24 mm. Fits plastic soda bottles.

$0.80
These #6-1/2 rubber stoppers are 27-34 mm diameter with one 5mm diameter ho... more

$0.80
These #6-1/2 rubber stoppers are 27-34 mm diameter with two 5mm diameter ho... more
 
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