Reese Towpower Dual-Fit Fas-Lok Trailer Coupler a versatile and reliable solution for securing your trailer. Featuring dual-fit spacers, this coupler is designed to fit two channel widths, ensuring a proper fit and reducing the chances of returns. The cam-action adjustable lock nut allows for precise ball tension, while the trigger handle makes it simple to secure the coupler onto the hitch ball. Finished with rust-resistant zinc plating, this coupler is built to withstand the elements. For added safety, a tethered pin is included. This model is suitable for Class I trailers with a 1-7/8" hitch ball size and supports a gross trailer weight of up to 2,000 pounds, compatible with 2" and 2-1/2" square channels. Model Number: 7004820