The CAC-1 Nitrogen tire inflator will help the users keep a proper tire inflation pressure which will maximize their cars tire life and fuel efficiency and the higher the nitrogen tire content the more consistent the tire pressure and longer the tire tread life. CAC-1- N2A Auto Tire Inflator (handles 2-4 tires) Specification: 1. Nitrogen Purity：95-99% 2. Nitrogen Flow Rate: 50-60L/min(2scfm) 3. Working Pressure: 90-145psig 4. Automatic tire inflator(handles 2-4 tires) 5. Power: AC220V 6. Dimension: 620*470*1100(mm) 7. Built-in 1pcs of 12L N2 buffer tank 8. External two stages high efficiency air filters(or Built-in ) with pressure regulator 9. Weight:65Kg.http://www.cangas-systems.com