Makita MAC2400 Portable Twin Stack Air Compressor, 130 Psi. 2.5 HPThe Makita Big Bore engineered pump with cast iron cylinder has greater bore and stroke for increased compression, faster recovery and less noise. Highlights: Oil lubricated pump runs quietly and reliably Runs at a lower RPM, resulting in greater motor and pump life Low AMP draw reduces instances of tripped breakers Cast iron pump with big bore cylinder and piston is engineered to provide faster recovery time for improved performance Powerful 2. 5 HP