Item No.: K37L225
.Features nylon housing adapter plug. 
.Converts trailer light connector from 4 flat pin to 7 RV blade. 
.It's the fastest and easiest way to make electrical connections
 when pulling a trailer that has a different wiring configuration than the vehicle. 
.Adapter allows you to easily find your connection in the dark!  For use with
 all trailers that have 4 flat pin wire plugs. 
.Includes 4 flat pin dust cover.