The Wal-Rich Flush Valve designed for N/S Amer Std #4 1.6 toilets ensures optimal flushing performance and water efficiency. This valve is compliant with ANSI standards, making it a reliable choice for both residential and commercial applications. Constructed from high-quality materials, it resists wear and tear, providing long-lasting service. The 1.6 GPF rating helps conserve water while delivering powerful flushes. Easy to install, this flush valve is compatible with a variety of toilet models, making it an essential component for any plumbing repair or upgrade.