Product Details: The Phillips 270" Trailer Harness Mid Main with Mid-Marker is the perfect solution for your trailer wiring needs. This harness offers exceptional corrosion protection with a firm seal, ensuring a snug fit and a waterproof connection. Each module is equipped with grease that prevents corrosion. Furthermore, all components have been 100% factory tested for quality assurance. With this product, you can rest assured that your trailer wiring will be secure and reliable. FleetPride is your First Click in Heavy Duty®.