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Size No. 00 - Black Rubber Stopper - Solid, 1-Hole, & 2- Hole
Laboratory Grade Rubber Stoppers
Black rubber Stoppers with low sulfur content. Rubber stoppers are used to close test tubes and lab glassware, such as Erlenmeyer Flasks, Florence (Boiling) Flasks, and Filtering Flasks, to prevent liquid from escaping.
Structure: Solid, 1-Hole or 2-Hole options
Hole Size: 3mm
Top Diameter: 15mm
Bottom Diameter: 10mm
Fits Flask size: 4 mm tubing