The Watts A-220 Ander-Lign Compression Union is a brass connector designed for use in plumbing and hydraulics systems. Made in the United States by the trusted brand Watts, this unit features a 1/2″ outer diameter and a 3/8″ male iron pipe thread. This fitting is essential for connecting pipes and ensuring a secure and reliable connection in various industrial and commercial applications. With its durable construction and precise measurements, the Watts A-220 Ander-Lign Compression Union is a valuable addition to any plumbing or hydraulic system.