Sunpro CP8218 Triple Gauge Kit - Black Dial Kit includes mechanical oil/water temperature gauge, electrical voltmeter, and mechanical oil pressure gauge 2-in black face dial with white numbers and red pointer Includes a 72-in capillary tubing with 5/8-in national pipe thread and 1/4-in, 3/8-in and 1/2-in adaptors and 72-in nylon tubing with 1/8-in and 1/4-in national pipe thread fittings Designed for negative ground systems They are clean and easy to read