AM2-SH09-20M This model features a powerful and efficient two stage compressor designed to maximize productivity. The versatility of the 20-gallon air compressor offers extra air storage and comes in stationary or portable models. Compressor Pump: Quality cast iron two stage compressor with venting system for reduced crankcase temperature and pressure · Splash lubricated cast iron crankcase to extend the hours of performance · Cast iron head and cylinder for extended durability · Large canister intake filter · Stainless-steel braided discharge hose · Oil level sight indicator Engine: Industrial Honda GX270 OHV engine (electric start optional) · Engine oil drain · Pneumatic idle control to conserve fuel Frame: Powder coated ASME coded 20-gallon receiver tank · 3/16-inch base plate to reduce vibration · 14-gauge powder coated two-piece belt guard with 1/4-turn release for quick access to belts Components: Regulator and two gauges for tank and outlet pressure · 16.5-inch fly wheel for extra cooling and longer life · Manual drain valves for proper maintenance · Belt tightening system pulls engine straight to ensure constant belt alignment · Quality pilot valve unloader Equipped with 150-PSI maximum rated regulator.