Southland 1-1/4" Ground Joint Black Iron Union is a high-quality black malleable iron union featuring an inserted brass seat for enhanced durability. Each fitting is individually flag-tagged and proudly displays the Mueller logo cast into the body, ensuring ity and superior craftsmanship. Imported and rigorously inspected, these unions are tested to reliable performance and a secure, leak- connection. I for plumbing and gas applications, this union provides dependable service where safety and quality are paramount. Model Number: 521-706BG