1 x Fully Assembled (all threads sealed) Inline Low Fuel Pressure 15 Psi Gauge Kit - For Low Pressure Fuel Systems:

• 0-15 Psi Low pressure glycerine filled gauge (Gauges that aren't glycerine filled suffer loss of calibration through vibration)
• Gauge has stainless steel body (will not corrode)
• Nickel Plated Inline Adaptor
• 2 x Nickel Plated 8mm Hose Tails
• Fully assembled with all threads sealed - Ready To Fit

Liquid Filled vs. Traditional Gauges:

The primary reason for gauge failure is vibration. In traditional dry gauges, delicate links, pivots, and pinions are prone to damage from vibration, leading to inconsistent performance. In a liquid-filled gauge, the fluid fill effectively dampens system pulsation, making the gauge pointer easier to read, illiminates gauge needle "chatter" which is a common factor with traditional gauges. 

If disassembled / reassembled do not over tighten fittings and always seal threads with suitable liquid thread sealant.