The 4" Flexible Rubber Cleanout/Test Cap from Braxton Harris Co Inc is designed for easy access and maintenance of plumbing systems. This cap features a flexible rubber construction that allows for a secure fit on cleanout openings, preventing leaks and blockages. Its durable design ensures long-lasting performance, making it suitable for both residential and commercial applications. Meeting industry standards for quality and safety, this cleanout cap is an essential tool for any plumbing professional, providing convenience and reliability.