Electrical Adapter With Tester (7-Way Rv Blade Vehicle To 4-Way Flat Trailer)

Adapts a 7-way RV blade vehicle socket to fit 4-way flat trailer plugs Simple plug-and-play design eliminates the need for cutting or splicing 4-way flat output connects tail lights, brake lights and turn signals LED tester confirms proper function of vehicle-side wiring connector Dust cover keeps connector clean when not in use