SPECIAL ORDER ITEM. Review Returns Policy before purchase. The Brass Expansion Male Adapter collection offers a reliable solution for connecting piping systems in both residential and commercial environments. Engineered for versatility, these adapters are fully certified for use in potable water and hydronic heating systems, ensuring peace of mind for various plumbing projects. The construction features high-performance dezincification-resistant brass, which provides exceptional durability and long-term structural integrity. Designed for seamless integration, these components are compatible with PEX-A or PE-RT piping, allowing for efficient installation in diverse configurations.