The 4" Sch 40 ABS Backwater Valve is designed to prevent backflow in plumbing systems, ensuring a safe and efficient drainage solution. Constructed from high-quality ABS material, this valve is lightweight yet durable, making it suitable for both residential and commercial applications. Its 4" diameter allows for easy installation in standard plumbing setups, and it meets industry compliance standards for reliability. This backwater valve is essential for protecting your property from potential water damage.