VWR Black Rubber Stoppers Two-Hole 5--M292 Case of

VWR Black Rubber Stoppers Two-Hole 5--M292 Case of. Combining top-notch and uncompromising quality with an affordable price the VWR Black Rubber Stoppers Two-Hole 5--M292/ 59582-202 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Black rubber stopper has a 2-hole pattern and is used for sealing test tubes and flasks to prevent breakage. The stopper functions as a plug to prevent liquids from leaking out of the bottle. It is used f