Check the listing for details. 7 Way Electrical Trailer Tail Light Wiring Junction Box - 7 Gang Wire Connection. Condition: New. Listed at 9.99 USD. 7 way Weather Proof Trailer Wire Junction Box Camper Truck RV Free Shipping Ships Same Or Next Business Day ---7-Pole junction box. ---Provides a fast, simplified way of connecting wires from the trailer connector to the trailer wiring. ---Offers a single connection point to help troubleshoot any problems. ---Made of heavy duty black poly plastic. ---Includes grommets: used and installed properly, weatherproof and corrosion resistant. ---8" L x 3.25" W x 2.5" H ---In Stock This is the TOP QUALITY Commercial type box with 3/8" nut 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.