Durable, reliable, quality engineering and construction. American Standard products are designed for your busy lifestyle. Parts, hardware and components are engineered to enhance the usage of your American Standard products. About American Standard Brands Great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American Standard is Style that Works Better everyday. Durable, reliable, quality engineering and construction. American Standard products are designed for your busy lifestyle. Parts, hardware, and components are engineered to enhance the usage of your American Standard products. About American Standard Brands Great performance and great looks meet in our complete line of fixtures and faucets for bath and kitchen. Performance and reliability. Coordinated collections. Ingenious features. American Standard is Style that Works Better everyday. Replacement part Flush valve seal Rubber construction For use with American Standard Heritage one-piece toilet, 2031.016 For use with American Standard Lexington one-piece round front and elongated toilets (2007.012 and 2006.014)