2-5/8in. OIL PRESSURE; 0-200 PSI; LIQUID FILLED; PRO-COMPThe life blood of your engine, a lack of oil pressure is one of the most catastrophic scenarios that can happen. Knowing the precise pressure is critical to both its longevity and performance, as well as your peace of mind. AutoMeter's Mechanical Oil Pressure Gauge utilizes the most advanced bourdon tube meter movement on the market to deliver accuracy and durability you won't find anywhere else. A simple 1/8 NPT connection makes installation easy. Fittings and nylon tube are included and optional braided stainless line kits are available. Liquid Dampening Movement Provides Smooth Pointer Movement Mechanical Instruments Provide Unmatched Accuracy No Electrical System Required For Gauge Operation Incl. 1/8 in. Nylon Line 1/8 in. Compression Fittings Incl. 1/4 in. NPT Adapter Incl. Bulb/Socket Assembly/Red And Green Bulb Covers Incl. Mounting Hardware/Instructions