The TL-33 Universal Coupler Lock is precision made of heavy grade aircraft aluminum and will not rust. For use with large heavy-duty padlock (padlock not included). Fits all trigger style: Fulton, Shelby, Dutton-Lainson, Atwood and similar. Fits latch style: Atwood, Fulton cast couplers and similar. Does not fit Hammeblow (Bulldog) couplers. This is most secure way to leave an unattended trailer.

• Provides the highest level of physical and visible theft deterrence for most coupler style locks
• Fits most 1-7/8 in., 2 in., and 2- 5/16 in. rigger style couplers
• Contains solid hardened 3/4 in. steel lock pin
• Engineered for versatility and 3 hole positions for multiple coupler applications
• Trailer hitch lock