Emglo Jenny Model F Air Compressor Piston Pump 10 Flywheel. This Emglo Model F air compressor pump is a reliable and efficient choice for your compressor needs. Made in the United States, this piston pump features a 10 flywheel and is perfect for use in air compressors. The brand Emglo is known for its quality and durability. Making this model a great investment for your business or industrial needs. This pump is in good working condition.