This is a model 2178A that fits a T@B400 coupler perfectly and also secures the safety chains, all in one neat package with two keys. It's a 2020 model in excellent condition. Selling because we got a new RV and this lock does not fit the new coupler. Price from Proven Industries for a new lock is $235, selling this one for $125 plus shipping costs, if those are necessary. Contact Verl Childers; 817-707-6010 or verlc@skybeammail.com. Current location is south of Waxahachie, TX.
