The Zurn PEX 1" Expansion Interlocking Head is designed for use with Milwaukee M18™ ProPEX® tools, providing a reliable solution for PEX expansion connections. This head is engineered for durability and precision, ensuring secure fittings in various plumbing applications. Its interlocking design allows for easy attachment and detachment, enhancing efficiency during installation. Compatible with Zurn PEX systems, this product meets industry standards for quality and performance, making it an essential tool for plumbing professionals.