Two Piece Coupler Lock is designed for theft deterrence, and to add an additional level of security preventing accidental uncoupling while in transit to better protect your trailer. Two-piece design for better access in hard to reach places. Fits most coupler sizes. Includes two keys. Corrosion resistant brass plated zinc construction.
| Brand | Sea-Dog Line |
| A | 1-11/16" |
| B | 1-13/16" |
| C | 3/4" |
| D | 9/16" |