Two cylinder cast iron two stage air compressor pump. This is a 5-horsepower pump that will deliver 18.71 CFM at 860 RPM with a max RPM of 900. This pump is most commonly used on compressor tanks of 80 gallons or larger in size and can be used with 220-volt 5 horsepower electric motors or larger. To verify your motor is large enough, it should be 20 amps or higher at 220 volts and at least 5 HP. This pump has a minimum RPM of 750. This pump comes complete as shown in the photos, including intake filters and flywheel. See specifications below for more details. YOUR COMPRESSOR, COMPRESSOR PARTS, & ACCESSORY SUPERSTORE! 3/8 RapidAir Garage Piping. Blow Guns & Tire Inflators. Regulators, Filters, & Oilers. Throttle Cont Cables & Valves. GREAT SELECTION OF PRODUCTS. PRODUCT KNOWLEDGE & SUPPORT. 5 HP Replacement Air Compressor Pump Two Stage 2 Cylinder 19 SCFM Max CS1105T. 5 HP Replacement Two Stage Air Compressor Pump. Cast Iron Cylinder and Crankcase. Equipped with Sight Glass for Easy Viewing of Oil Level. Comes with One Intake Filters. Two Cylinder. Two Stage. 5 HP. Maximum Recommended Working Pressure: 175 PSI. Recommended RPM: 750-900. SCFM: 19 Max. Bolt Pattern: 7.76″ (Front to Back) x 9.02″ (Side to Side). California Residents Warning: This product contains or may contain chemicals including lead known in the state of California to cause cancer, birth defects, or other reproductive harm. California law requires this warning be given to all customers in the state of California. California Health and Safety Code 25249.5 et seq. If for any reason there is an issue with your order we will contact you right away. Feedback At Compressor Source we strive for great customer service and to sell the best quality parts at the lowest prices possible.