With an aluminum shell, our air compressor head is characteristic with cast cylinder sleeves and an excellent heat dissipation system. The air compressor cylinder is designed for long time use, and it's easy for maintenance. Due to the oil viewing window and the belt-driven design, this 3hp compressor pump is ideal for replacing a defective unit or expanding an existing compressed air system, suitable for farming, industrial & mechanical use. | Vevor | | Air Compressor Pump, 3HP 11.8CFM, Industrial Compressor Head Pump Motor, 1300RPM High-Spped Single Stage Twin Cylinder | Silver | Best Buy