The Fluidmaster 400ARHRFCS Universal High Performance PerforMAX Toilet Fill Valve is a traditional style flush valve designed for use in standard or elongated bowl toilets. This black-colored valve is compatible with brands such as American Standard, Glacier Bay, KOHLER, and Delta, making it a versatile option for various bathroom applications. Made of PVC and rubber materials, this flush valve is suitable for use in flush tanks and offers a single flush type for efficient performance. The Fluidmaster 400ARHRFCS model is a reliable choice for replacing existing toilet fill valves in a standard-shaped bathroom setting.