Drilled with 3/8″ hole in the center. Our stoppers are manufactured from a premium grade rubber material. This makes the stopper soft, pliable and long lasting. Use with any of our airlocks.
STOPPER SIZE CHART | ||
Size # | Bottom Dim. | Top Dim. |
#00 | 1/4″ | 7/16″ |
#1 | 9/16″ | 3/4″ |
#2 | 5/8″ | 13/16″ |
#3 | 3/4″ | 15/16″ |
#4 | 13/16″ | 1″ |
#5 | 7/8″ | 1 1/16″ |
#5 1/2 | 15/16 | 1 1/8″ |
#6 | 1″ | 1 1/4″ |
#6 1/2 | 1 1/16″ | 1 3/8″ |
#7 | 1 3/16″ | 1 7/16″ |
#7 1/2″ | 1 1/4″ | 1 9/16″ |
#8 | 1 5/16″ | 1 5/8″ |
#8 1/2 | 1 7/16″ | 1 11/16″ |
#9 | 1 1/2″ | 1 3/4″ |
#9 1/2 | 1 3/16″ | 1 9/16″ |
#10 | 1 11/16″ | 2″ |
#10 1/2 | 1 3/4″ | 2 1/8″ |
#11 | 1 7/8″ | 2 3/16″ |
#11 1/2 | 2″ | 2 1/2″ |
#12 | 2 1/8″ | 2 9/16″ |
#13 | 2 5/16″ | 2 11/16″ |
#13 1/2″ | 2 7/16″ | 3″ |
#14 | 3″ | 3 9/16″ |