Model | Joint Width | Exposed Surface | Minimum Opening | Maximum Opening |
FKM-25 | 25 | 232 | 20 | 50 |
FKM-50 | 50 | 232 | 20 | 100 |
FKM-75 | 75 | 232 | 20 | 113 |
FKM-100 | 100 | 232 | 20 | 150 | FKM-125 | 125 | 317 | 20 | 187 | FKM-150 | 150 | 317 | 20 | 225 | FKM-175 | 175 | 377 | 20 | 263 | FKM-200 | 200 | 377 | 20 | 300 |