• 1/2 Inch PTC Service Rear
• 3/8 Inch PTC Stop Light Switch
• 1/2 Inch PTC Service Front
• 3/8 Inch PTC Trailer Control
• 1/2 Inch NPT Trailer Service Supply
• 1/2 Inch NPT Trailer Emergency Supply
• 3/8 Inch PTC Tractor Protection Control Delivery