General description 12 Volt Electric Power Brake Booster Vacuum Pump is designed to provide the necessary vacuum for brake boosters when the proper amount of vacuum is not generated. This kit is ideal for cars with 15" of vacuum or less at idle, making it particularly useful for street rods with radical camshafts. Technical specifications Voltage: 12 Volt Vacuum range: Operates when vacuum drops below 18 inches and turns off when over 22 inches Condition: 100% brand new Warranty: 2 years Compatibility and accessories Includes: 1- 12 volt pump 1- relay 1- vacuum pressure switch 1- vacuum hose 1- mounting hardware kit Exhaust filter Installation All wiring included with connections for fast and easy installation Self-adjusting inline vacuum switch cycles the pump on and off All wires are pre-cut and terminals installed for easier installation Professional installation is highly recommended (Instruction included) Usage Provides vacuum to power brake booster, ensuring optimal performance