The TOTO USA Toilet Valve Assembly (Model THP3542) is designed for 1.0 GPF toilets, ensuring efficient water usage and optimal performance. This valve assembly is crafted from high-quality materials for durability and reliability. It features a compact design that fits seamlessly into various toilet models, making it a versatile choice for replacements. The assembly is compliant with industry standards, ensuring it meets the necessary regulations for water efficiency. Ideal for both residential and commercial applications, this valve assembly is easy to install and maintain, providing a long-lasting solution for your toilet needs.