Drilled rubber bungs (stoppers) - 3/8" center hole fits airlock. No 2 stoppers fit most wine bottles.
- 5.5 - 1-1/8" top diam; 1" bottom diam
- 6 - 1-1/18" top diam; 1-1/16" bottom dial
- 6.5 - 1-3/8" top diam; 1-1/18" bottom diam
- 7 - 1-7/16" top diam; 1-3/16" bottom diam
- 7.5 - 1-1/2" top diam; 1-1/4" bottom diam
- 8 - 1-5/8" top diam; 1-3/8" bottom diam
- 8.5 - 1-11/16" top diam; 1-7/16" bottom diam
- 9 - 1-13/16" top diam; 1-1/2" bottom diam
- 10 - 1-15/16" top diam; 1-5/8" bottom diam
- 10.5 - 2-1/16" top diam; 1-3/4" bottom diam
- 11 - 2-1/4" top diam; 1-15/16" bottom diam
- 11.5 - 2-1/2" top diam; 2" bottom diam
- 12 - 2-9/16" top diam; 2-1/8" bottom diam
- 13 - 2-11/16" top diam; 2-5/16" bottom diam