| Fersa | Bore diameter (mm) | Out diameter (mm) | T Size (mm) | Weight (Kg) |
|---|---|---|---|---|
| FDRK 4426 | - | - | - | 13.20 |
| FDRK 4426 OB | - | - | - | 12.80 |
| FDRK 4426 OB X | - | - | - | 12.04 |
| FDRK 4428 | - | - | - | 13.20 |
| FDRK 4428 OB | - | - | - | 12.80 |
| FDRK 4428 OB X | - | - | - | 12.04 |
| FDRK 4428 P | - | - | - | 13.20 |
| FDRK 442A | - | - | - | 18.30 |
| FDRK 442A OB | - | - | - | 17.30 |
| FDRK 443 | - | - | - | 15.00 |
| FDRK 443 OB | - | - | - | 17.80 |
| FDRK 4435 | - | - | - | 16.10 |
| FDRK 4435 OB | - | - | - | 16.10 |
| FDRK 4436 | - | - | - | 16.10 |
| FDRK 4437 | - | - | - | 14.90 |
| FDRK 443A | - | - | - | 18.30 |
| FDRK 443A OB | - | - | - | 18.20 |
| FDRK 444 | - | - | - | 16.60 |
| FDRK 444 OB | - | - | - | 17.00 |
| FDRK 4440 | - | - | - | 18.40 |