The SEALFAST 4" CON. BR DUST CAP is a high-quality brass cap designed to securely cover and protect 4-inch connections. This dust cap is essential for preventing contaminants from entering your piping systems, ensuring optimal performance and longevity. Made from durable brass, it offers excellent corrosion resistance and durability, making it suitable for various industrial applications. The cap is easy to install and remove, providing a reliable seal that meets industry standards. Ideal for use in plumbing, irrigation, and other fluid transfer systems, this dust cap is a must-have for maintaining system integrity.