NorthStar Belt-Drive Stationary Air Compressor &mdash; 3 HP, 60-Gallon Vertical Tank Durable cast iron oil-lubricated pump for long life and no heat transfer between cylinders Copper finned inter-and after-coolers provide good heat dissipation and less moisture Reed valves are made of heat-resistant alloy steel supplied from Sweden ASSAB Valves are specifically designed for maximum efficiency 20,000-hour bearing life (1) 3 HP, 60-gallon vertical electric air compressor Designed with superior technology to keep you working without interruption Durable cast iron oil-lubricated pump for long service life and 2-cylinder design for low heat transfer between cylinders Ball bearings are placed on both ends of the pumps crankshaft for smooth running, superior support and up to 20,000 hours of bearing life Copper finned aftercoolers provide good heat dissipation and less moisture Engineered with a V-style 2-cylinder single-stage pump that eliminates hotspots and provides consistent cooling for longer pump life Reed valves are made of heat-resistant alloy steel supplied from Sweden ASSAB Pump is made of cast iron for exceptional durability The air receiver tank is made of high-quality welded steel to provide many years of reliable service Tank has a weather-resistant powder-coat finish to withstand harsh conditions in any season The ASME-certified 60-gallon tank is fitted with top-quality valves for long service life and maximum efficiency Gate valve allows for downstream air to be air to be shut off Durable cast iron oil-lubricated pump for long life and no heat transfer between cylinders Copper finned inter-and after-coolers provide good heat dissipation and less moisture Reed valves are made of heat-resistant alloy steel supplied from Sweden ASSAB Valves are specifically designed for maximum efficiency 20,000-hour bearing life Triple-ringed piston for very low oil consumption and longer head life Durable alloy rods Spheroidal graphite cast iron crankshaft for maximum strength Ball bearings on each side of crankshaft for smooth running and durability Heavy-duty paper element filters keep cylinder heads clean Motor runs at 3,450 RPM Pump runs at 920 RPM Durable metal belt won&#039;t break Oil sight gauge for easy visual oil checks ASME-certified tank is ready for use in commercial shops