The Perlick 40139B31 is a specialized parts bag designed to convert your manifold assembly to a 5/16" output. This essential component ensures compatibility with various draft beer systems, enhancing performance and efficiency. Crafted for durability and reliability, it simplifies the installation process, allowing for seamless integration into your existing setup. Ideal for both home brewers and commercial applications, this parts bag is a must-have for optimizing your draft beer system.