Product Review

Master Lock Universal Heavy Duty Coupler Lock is designed to fit all types of different couplers. It can be used on a gooseneck, a fifth wheel, and lunette- ring trailers. This unit is made of laminated steel-frame construction and withstands the elements with an ultrasonic-welded, plastic housing and PVC cover so that it keeps the lock clean from the elements. It is backed by a limited lifetime warranty.