Bought this unit to fill the 5000 lb air bags I just installed on my truck. The air bags are rated to a max of 100 psi which this does effortlessly. It is all metal construction, quiet and well made. Should last a lifetime. Don't waste your money on a on board air compressor for your air bags...this does it perfectly plus it has additional uses on or around the vehicle. Handy carry bag and very long 12 volt cord. Solid purchase and price AA.