7 Way Trailer Wire Junction Box Camper Truck weather proof RV Light cord plug This is the TOP QUALITY Commercial type box with 3/8″ nuts studs. No more wire nuts, black tape and hanging wires!  Weather proof, and includes many assorted extra grommets for various wire sizes, to insure a tight seal where the wire enters the box. Top cover is screwed down. Large size for easy access and wiring. Overall Dimensions 8″ L x 3.25″ W x 2.5″ H… Center to Center Mounting Holes 7.5″ Weather proof, and includes many assorted extra grommets for various wire sizes… Made of heavy duty black poly plastic… Offers a single connection point to help troubleshoot any problems. Made in USA