The Fluidmaster 400AW504 Universal Fill Valve is the #1 selling toilet fill valve in the world and the trusted solution for fixing noisy or slow-filling toilets. Designed for easy installation and universal compatibility, this adjustable fill valve fits most toilets and works with 3.5 to 7.0 GPF systems. The E-Z twist height adjustment (9 in to 14 inch) allows a precise fit, while corrosion-resistant materials ensure long-lasting, reliable performance. Ideal for residential toilet repairs, the Fluidmaster 400A provides quiet operation and consistent tank refill every time.

• 3.5 to 7.0 GPF Flush Compatibility
• 9 inch to 14 inch E-Z twist adjustable height
• Designed to fit most standard toilets
• Corrosion-resistant construction