The 4MM Brass Half Cartridge McMaster Carr JG#MM2804N is engineered for high-performance applications requiring a 4MM connection. Made from premium brass, this half cartridge offers excellent durability and corrosion resistance. It is designed to fit seamlessly into various systems, ensuring reliable fluid transfer. This product adheres to industry standards, providing peace of mind for users. Its compatibility with McMaster Carr fittings allows for straightforward installation, making it an essential component for both professionals and DIY projects.