GR65 Coupling pad
| Product number | internal diameter(MM) | external diameter(MM) | Height 1(MM) | Height 2(MM) | Flap number |
| GR19 | 18 | 40 | 14.5 | 12 | 6 |
| GR24 | 26 | 54 | 15.2 | 14 | 8 |
| GR28 | 30 | 65 | 19 | 15 | 8 |
| GR38 | 38 | 80 | 22 | 18 | 8 |
| GR42 | 46 | 95 | 24 | 20 | 8 |
| GR48 | 51 | 104 | 25.5 | 20.5 | 8 |
| GR55 | 60 | 120 | 27 | 22 | 8 |
| GR65 | 68 | 135 | 32 | 26 | 8 |
| GR75 | 81 | 161 | 37 | 30 | 10 |
| GR90 | 100 | 199 | 42 | 34 | 10 |
| GR100 | 111 | 224 | 42 | 38 | 10 |
| GR110 | 121 | 255 | 42 | 38 | 10 |
| GR125 | 150 | 293 | 42 | 46.5 | 10 |
