The SEALFAST 4" Locking Dust Cap in brass is engineered for secure sealing of pipes and fittings. This durable cap features a locking mechanism that ensures a tight fit, preventing dust and contaminants from entering your system. With a 4" diameter, it is compatible with various industrial applications, providing a reliable solution for protecting your equipment. The brass construction offers excellent corrosion resistance and longevity, making it suitable for outdoor and harsh environments. This dust cap meets industry standards for quality and performance.