The 3-1/2" Extension Cover Brass Plug is designed for secure sealing in plumbing applications. Made from high-quality brass, this plug offers excellent durability and corrosion resistance. Its 1/4" tapped design allows for easy installation and compatibility with standard fittings. Ideal for use in extension covers, this plug ensures a reliable seal, preventing leaks and maintaining system integrity. This product meets industry standards for quality and safety, making it suitable for both residential and commercial plumbing systems.