The California Air Tools Ultra Quiet Oil-Free 2.0 HP 10-gal. Steel Tank Air Compressor w/ Auto Drain Valve is designed to be one of the quietest 2.0 HP air compressors in the industry having only 70 decibels of sound. The Powerful "New" 2.0 HP (SP-9421) motor operates at only 1680 RPM creating less noise and less wear. The "New" SP Series of Ultra Quiet Air Compressor Motors have been designed to increase duty cycle and allow for longer continuous run times. The Oil-Free Dual Piston Pump System is engineered for high performance and durability. The California Air Tools Air Compressor has an Oil-Free Dual Piston pump designed to have a life cycle before wear of 3000 plus hours compared to other comparable air compressors with life cycles of 500 hours or less.1 Year Limited Warranty