The Regal 111XL Flush Valve with a 1.6 GPF capacity by WAL-RICH is designed for high-efficiency toilet systems. This flush valve is constructed from durable materials to ensure reliable performance and longevity. It features a 1.6 gallons per flush rating, making it an eco-friendly choice that helps conserve water without sacrificing performance. The valve is easy to install and compatible with most toilet models, ensuring a perfect fit. Ideal for both residential and commercial applications, this flush valve enhances toilet efficiency and functionality.