Unified Marine 50080304 Trailer 4-Way Circuit Tester

Unified Marine 50080304 Trailer 4-Way Circuit Tester: Sports & Outdoors. Unified Marine 50080304 Trailer 4-Way Circuit Tester: Sports & Outdoors. Designed to be kind to your boat. 。 Made of durable material. 。 Satisfaction Ensured. 。 Plug tester into vehicle's 4-way flat towing plug. Operate vehicles turn signals, lights and brakes. When power is present, that circuit's green light will glow. 。 。 。

Unified Marine 50080304 Trailer 4-Way Circuit Tester