California Air Tools CAT-1740D Ultra Quiet and Oil-Free 4.0 HP 17.0-Gallon Steel Tank Air Compressor with Dryer Ultra Quiet only 80 Decibels Oil-Free Pump for Less Maintenance & Costs 17.0 Gallon Steel Tank 2- Air Dyers & After coolers for dry air delivery Two Powerful 2.0 HP (Rated/Running) Motors