Service Valve (Video)

Main shut off valve for the service line (shuts off gas flow)

Fuel Level (%) Gauge (Video)

Shows the percentage of fuel in your tank, NOT a gallon gauge

Regulator (not shown)

The device continuously regulates pressure to your system

Pig Tail (not shown)

Connects propane service valve to high pressure regulator

Fill Valve

Valve through which the tank is filled

Relief Valve

Protects the tank from excessive pressure

Fixed Liquid Level Gauge (spitter)

Gauge used by the driver to determine if the tank is properly filled. Percentage gauge not to be used for filling. 

Vapor Return Valve

Used for tank evacuation