Mr. Gasket 1564 Liquid Filled Fuel Pressure Gauge Accurately and reliably monitors fuel pressure Uniquely designed to resist vibration Comes with a brass junction block and a three eighths inch fuel line adapter that's perfect for checking fuel pressure while tuning your engine Reads in half pound increments across a range from 0 to 15 pounds Features a 270 degree sweep an easy to read white face with black numbers and a chrome bezel