Great replacement solenoid valve for closestool. Replace the bad work solenoid valve for closestool TOILET FILL VALVE: 4Seasons Toilet Fill Valve is a simple and easy replacement toilet fill valve to fix leaking, noisy and slow-filling toilet tanks in homes, offices & hotels. 6"-10" ADJUSTABLE DESIGN: It has a height-adjustable valve shank design 6 to 10 inches toilet replacement part designed that solves common toilet fill problems. WATER-SAVING DESIGN: This Water-Saving fill Valve calibrates the amount of water being sent to the bowl during the tank refilling process, helping to save water usage UNIVERSAL DESIGN - Fits most toilet models Anti-Siphon to prevent water contamination Now pre-installed shank washer for quicker installation Height easily adjusts from 7 inches to 10 inches