With durability, performance, solid cast iron cylinder, crankshaft and valve plates the Carlyle Air Compressor provides the strength that is required for everyday use. Deep finned cylinder heads and coolers allow for unmatched heat dissipation. Balanced pistons and crankshaft mean smoother and quieter operation. Oversized main bearings and automotive style replaceable rod bearings for a durable compressor pump. All units are 100% tested at full pressure. All Carlyle 2 stage Air Compressors come Ready to Run with a full 2 Year Warranty.