The #13 Drilled Rubber Stopper is a white gum laboratory stopper with a 3/8 inch hole in the center, for use with an airlock or tubing.
- Top Diameter: 2-11/16 inches
- Bottom Diameter: 2-5/16 inches
- Center Hole: 3/8 inch
#13 Rubber Stopper - Drilled Reviews
|Average Customer Rating:|
|(based on 0 reviews)|| |