4.6 Gallon ultra-quiet, 2 HP (peak) motor only 60 decibels Durable oil-free pump with minimal maintenance Twin cylinder pump for faster air recovery Extra long pump life of over 3,000 hours Rust-free aluminum tanks 120 PSI maximum tank pressure ASME safety valve Thermal overload protector Dual 1/4? universal Inchone touch? quick connect couplers allow user to connect up to 2 air tools Air pressure regulator and large easy to read pressure gauges