Materials: Crafted from pp materials, this universal toilet fill valve is designed for durability and long performance, capable of withstanding everyday wear and tear in the bathroomEfficient Water Flow Control: Featuring an innovative design, this toilet tank accessory offers efficient water flow control. Easily adjust the water volume to your preference to conserve waterEasy Installation: The fill valve is simple to install and fits most standard toilets, making it a convenient choice for quick upgrades or replacementsEnhanced Functionality: Beyond adjustable water flow, this Fill Repair Kit improves overall toilet functionality by ensuring a smooth and quiet filling process while preventing potential leaks or noisy operationsAdjustable Design: With an adjustable height range of 20.5cm/8.07inch to 33cm/12.99inch and a working water level from 9cm/3.54inch to 25.5cm/10.04inch, this fill valve offers flexibility to suit various toilet models for optimal performance Size Chart: adjustable height : 20.5cm/8.07inch-33cm/12.99inchwater level :9cm/3.54inch-25.5cm/10.04inch Package Includes: 1Flush Valve 1Water supply tube Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.