12 inch fuel to truck transfer systems. Includes all parts necessary, including sending unit to transfer fuel from an auxiliary tank to the original equipment manufacturer tank using a 12 volt, 30 gph pump installed with “cab-mounted” switch and fuel gauge. This system must be monitored and manually turned on. System automatically turns off (adjustable from 0-15 minutes). System does not require tying into factory wiring harness. Pump and filter are attached to frame rails under the bed.