Technical Details 60-gallon vertical compressor with a powerful 3 hp motor Over 35% quieter and 60 degrees cooler and than aluminum pumps with cast iron sleeves Cast iron pump for optimal durability Up to 5,000 hours pump life for unsurpassed reliability Weighs 254 pounds Equipped with a 100 percent cast iron pump, the Maxus 15 Amp 3 HP 60-Gallon Cast Iron Oiled Vertical Compressor outlasts and out-performs aluminum pumps for cleaner painting applications and more reliable air tool operation. This rugged, two-cylinder, oil-lubricated pump offers up to 5,000 hours of pump life. It's over 35 percent quieter than aluminum pumps with cast iron sleeves and operates 60 degrees cooler. A powerful 3 HP motor cranks out 135 PSI for operating most air tools. A heavy duty air filtration system means clean painting applications and longer tool life.