Tank Repair Kit TOILET FILL VALVE: Elegant Casa Toilet Fill Valve is a simple and easy replacement toilet fill valve to fix leaking, noisy and slow filling toilet tanks in home, office & hotels. ANTI-SIPHON TECHNOLOGY: Made in an essentially one-way valve design to stop the flow of potentially contaminated water back into the drinkable (potable) water supply. 7"-10" ADJUSTABLE DESIGN: It has a height-adjustable valve shank design 7 to 10 inches toilet replacement part designed that solves common toilet fill problems. Tank Repair Kit