Trailer 4-Way Circuit Tester - Watercraft Superstore
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Trailer 4-Way Circuit Tester

304SB002

  • Directions: 
  • Plug tester into vehicles 4-way flat towing plug. 
  • Operate vehicles turn signals: lights and brakes. 
  • When power is present: that circuits green light will glow. 
  • Waterproof PVC material. 
  • Clam Pack.
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