Product Overview
Double hole rubber stoppers made of natural rubber available in ASTM standard sizes. May be black or red color due to difference in suppliers.
| Stopper Size | Top dia., mm | Bottom dia., mm | Height, mm |
| 000 | 12.7 | 8.2 | 21 |
| 00 | 15 | 10 | 25 |
| 0 | 17 | 13 | 25 |
| 1 | 19 | 14 | 25 |
| 2 | 20 | 16 | 25 |
| 3 | 24 | 18 | 25 |
| 4 | 26 | 20 | 25 |
| 5 | 27 | 23 | 25 |
| 5-1/2 | 28 | 24 | 25 |
| 6 | 32 | 26 | 25 |
| 6-1/2 | 34 | 27 | 25 |
| 7 | 37 | 30 | 25 |
| 7-1/2 | 39 | 31 | 25 |
| 8 | 41 | 33 | 25 |
| 8-1/2 | 43 | 36 | 25 |
| 9 | 45 | 37 | 25 |
| 10 | 50 | 42 | 25 |
| 10-1/2 | 53 | 45 | 25 |
| 11 | 56 | 48 | 25 |
| 11-1/2 | 63 | 50 | 25 |
| 12 | 64 | 54 | 25 |
| 13 | 68 | 58 | 25 |
| 13-1/2 | 75 | 62 | 35 |
| 14 | 90 | 75 | 39 |
| 15 | 103 | 83 | 39 |
| 16 | 127 | 90 | 50 |
