The Carlyle 5H 40-502 Gasket Set is a high-quality unit designed for use in the HVAC and refrigeration industry. Made in the United States by the trusted brand Carlyle, this gasket set is specifically designed to provide a secure seal for your refrigeration system. The set includes one blue gasket, ensuring a reliable and durable performance. With its focus on quality and efficiency, this gasket set is a must-have for any professional in the refrigeration industry.