This EMAX Industrial Silent 7.5 HP, 2-Stage, 80-Gallon Vertical Air Compressor is designed for up to 50,000 hours of commercial or industrial use with proper maintenance. This unit features the Whisper 100 patent-pending noise suppression system cabinet that channels intake air through baffle plates and pre-filter media. Up to 25% quieter than comparable 7.5 HP air compressors, this one is perfect for environments where workers are close to the compressor. The 2-stage cast iron pump features Timkin-style stainless steel roller bearings on the front and rear of the crankshaft to ensure smooth, efficient operation with minimum drag. The 7.5 HP ODP motor runs at a low 1750 RPM. The belt tension adjuster can be used to reduce vibration and extend belt life.