Whether tuning your vehicle for maximum performance or monitoring your driving for maximum fuel economy, AutoMeter's Mechanical Vacuum Gauge has been the solution trusted by professionals for years. An ultra precise bourdon tube meter movement sits at the heart of this instrument, providing the kind of accuracy and durability necessary to compete at the highest levels. A simple 1/8” NPT fitting on the back makes installation easy, and 1/8” nylon line and fittings are included.Features: Traditional incandescent lighting illuminates around the perimeter of the dial Liquid dampened movement provides smooth pointer movement and extended service life in harsh environment applications. Liquid filled design for superior resistance to shock, vibration, and the elements. AutoMeter’s race proven mechanical instruments provide trusted accuracy while being simple to install No electrical system required for gauge operation - compatible with every street or race vehicle Gauge kit includes 1/8” nylon line, T-Fitting, vacuum fitting, compression fittings, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation Product Description: 2-5/8" Vacuum Gauge, 0-30 In HG, Liquid Filled, Pro-CompPit Stop USA offers Auto Meter Pro-Comp Liquid Filled Vacuum Gauge - 2-5/8" 5484 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Vacuum Gauges.