Universal Zinc Coupler with 3 in. Tongue Mount Width for 2 in. Hitch Ball (22300 0101) by Fulton&reg. The The Weight Capacity is 3500 lbs. Replace your old, worn-out, rusty trailer coupler with a new one. Whether it’s stamped from sheet metal or cast from steel, a new coupler will make your trailer easier to hook up or drop off. Features Steel construction.; Replace your rusty or damaged coupler.; Easy to use.; Strong in both static and dynamic loading conditions.; Clear, visual indication of proper closure.; Stop hammering on your sticky coupler latch.; Specifications Dimensions – 10.5 x 4.5 x 4 in.; Item Weight – 4.2 lbs.; .