The Bosch SP0F000039 is a Style Line 1-1/2" Mini Triple Gauge Kit. It features Mechanical Water/Oil Temperature, Electrical Voltmeter, and Mechanical Oil Pressure gauges. Includes 72" high temperature nylon tubing with 1/8" and 1/4" NPT thread fittings. Also includes mounting hardware and 12 volt internal lighting. Popular Mini gauges packaged conveniently for easy installation. Only for 12 volt negative ground systems. The Style Line features a clean easy to read look with a bright pointer against a white or black background. Bosch is known for precision, engineering, and innovation. Add style and you have the first-ever line of Bosch gauges, including replacement tachometers, speedometers, temperature and pressure gauges for all applications. Bosch Branded Gauges represent the latest in design following our 100+ year history of Automotive, Industrial, and Racing products.