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.
Specifications:
Size: 1
Structure: Solid, 1-Hole or 2-Hole options
Hole Size: 4mm
Top Diameter: 19mm
Bottom Diameter: 14mm
Fits Flask size: VEE GEE Erlenmeyer Flasks 50ML, 100ML & 125ML Distilling flasks
