All Prices in Canadian Dollars

Rubber Stopper Sizing Chart

Drilled stoppers have a 3/8 inch hole to accept air locks.

Bung Size
Top Diameter
Bottom Diameter
Length
Number
mm
mm
mm
2
20
16
25
3
24
18
25
4
26
20
25
5
27
23
25
5.5
28
24
25
6
32
26
25
6.5
34
27
25
7
37
30
25
7.5
39
31
25
8
41
33
25
8.5
43
36
25
9
45
37
25
9.5
46
38
25
10
50
42
25
10.5
53
45
25
11
56
48
25
11.5
63
50
25
12
64
54
25
13
68
58
25