This professional grade, heavy duty trailer wiring box is used to connect your 7-way trailer cable to the wires going to your brakes, battery and running lights.
It has 7 connector poles with 10-32 NF thread and nuts.
The box is completely splash and weather proof, so it keeps the dirt and muck out but allows condensation to escape so the wires don't corrode because of the moisture. The box comes complete with 4 closed grommets, two strain relief clamps, a decal for color coding terminals if you wish, and all the other hardware necessary.
Measures 3-1/2"W x 2-1/2"H x 6-3/4"L (not including mounting ears).