Two-cylinder v-style cast iron single-stage air compressor pump. This is a 3 horsepower pump that will produce 12.7 CFM. This pump is most commonly used on compressors under 60 gallons in size and can be used with a true 3 horsepower motor (these motors typically run at 15 amps on 230 volts. Note: A motor that runs on 110V will not be powerful enough to run this pump). This pump comes complete as shown in the photos, including the intake filters and flywheel. See specifications below for more details. Features: Cast Iron Cylinder and Crankcase Equipped with Sight Glass for Easy Viewing of Oil Level Comes with Two Intake Filters Specifications Two Cylinder Single Stage Recommended Motor Size: 3 HP (15 Amps on 230V) CFM at 1180 RPM (Max RPM): 12.7 Cylinder Stroke: 48mm Pump Flywheel Diameter: 10.5" Net Weight: 41 lbs Outside Dimension (W x D x H): 15" x 10" x 12" Bolt Pattern: 8.5" x 4.875"