Trimax universal dual purpose coupler locks fit all couplers from 1 7/8", 2", to 2 5/16", all coupler types. Available in 2 models. UMAX100 which features 360 degrees of Solid Hardened Steel and UMAX50 which is made of Die Cast rugged corrosion resistant finish. Both provide instant security for your camper, boat or trailer when they are not hooked up to your vehicle. Features 1/2 turn technology that cannot be false locked. Easy Installation. Slide ball up into coupler and replace u-shackle. One size fits all (from 1 7/8", 2", to 2 5/16", all coupler types). Featuring hey hole cover that slides up to seal out dirt and grime. An attractive ballistic grade nylon housing absorbs hammer blows and protects against weather. Plus a Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break.
Fits all of the following couplers and more...
1 7/8" or 2" Fulton
2 5/16" couplers
Fulton Heavy Duty
Surge Brake (Reverse Mount)
Specifications: - LIFETIME WARRANTY