Product Details: The Littelfuse 12/24V Female Round 4-Pole Plug Socket is the perfect solution for your towing needs. This durable diecast metal housing is designed to protect against road splash and features replaceable interiors. The brass split-pin contacts are positioned properly to ensure good contact and little voltage drop. This plug socket is ideal for boat trailers or RVs towing a car on a flatbed trailer. With its 4 circuitry and 12 AWG brass input terminals, you can be sure that your connection is secure and reliable. FleetPride is your First Click in Heavy Duty®.