The Dorman Smith YAA1PLB 1P YB3 to AA LB Adaptor is a brand new metal accessory designed to convert 1-phase YB3 to AA LB connectors. Produced by Dorman Smith, known for their quality electrical products, this adaptor ensures a reliable and efficient connection for your electrical needs. Perfect for use in various industrial and commercial applications, this durable and high-quality product offers a seamless solution for adapting your electrical connections.