Refrigerated Compressed Air Dryer for 3-5 HP 2-Stage Piston Compressors 20 SCFM Max - Dry Air Made Easy and Affordable! Same Performance as Freon-type Air Dryers! JT Refrigeration Method uses NO Freon Removes Liquid Water and Water Vapor from Air Stream No Filters, No Media - No Maintenance - No Hassles! 5 Year Limited Warranty - Made in USA