White Illumination Around Dial, Includes Red And Green Bulb Covers For Customized Look, Chrome Bezel, Mechanical Fuel Pressure Gauge, 2 1/16" (52,4mm), 0-100 PSI, Required # 4 Braided Hose, Mounting Cup, Must Be Mounted Outside Vehicle with mounting cap. mounting hole is 2-1/16 (52,4mm), mounting depth is 1-9/16 (39,7mm). To mount inside the vehicle Auto Meter #5282 is required (see under accessories). Sport-Compact analog gauges are the trademarks of the entire Auto Meter line and are chosen by the pros because they stand the test of time. Made in USA