Phantom mechanical gauges are offered in both the popular 2-1/16in. size and the race-styled 2-5/8in. size. Oil pressure and water temperature are also available in a specialty 3-3/8in. version for enhanced visibility. These 270deg in.full sweepin. gauges feature a quality engineered bourdon tube design and durable, performance grade movements for unsurpassed accuracy under the most demanding conditions. Gauge must be mounted outside of vehicle. Requires braided stainless steel hose and mounting cups.