Stren duratuff is a first for heavy duty monofilament. This line is the most abrasive resistant ever, yet still maintains the softness and low memory that Stren is famous for.
| Model | Yardage | Test |
| SDFS4-G | 330YDS | 4lb |
| SDFS6-G | 330YDS | 6lb |
| SDFS8-G | 330YDS | 8lb |
| SDFS10-G | 330YDS | 10lb |
| SDFS12-G | 330YDS | 12lb |
| SDFS14-G | 330YDS | 14lb |
| SDFS17-G | 330YDS | 17lb |
| SDFS20-G | 330YDS | 20lb |
| SDFS25-G | 330YDS | 25lb |
| SDFS30-G | 330YDS | 30lb |
