Trust in the quality of the Fluidmaster 400A Toilet Tank Repair Fill Valve to meet your needs. Quick and easy to install, it's height-adjustable to fit in nearly any 1- or 2-piece model for your convenience. This Fluidmaster toilet tank fill valve helps to stop water running and tank noise and reduces wasted water. Swap it with the float ball and rod mechanism in your older unit. This toilet tank fill valve replacement is made of long-lasting, corrosion-resistant materials. An anti-siphon design guards against contamination. Fluidmaster 400A Universal Toilet Tank Repair Valve * Replacement refill valve * Fluidmaster toilet tank fill valve offers easy installation * Prevents backflow * Toilet tank fill valve replacement gives you fast, positive shut-off * Made from high-quality materials for long life and top performance * Anti-siphon guard to keep your water fresh and clean * Designed to fit almost any 1-piece or 2-piece toilet * 5-year warranty