2 Pack Toilet Fill Valve Replacement>>How to know if the toilet fill valve of a toilet tank is damaged 1. Water keeps flowing into the toilet tank and out of the overflow pipe. 2. Water does not enter the toilet tank, or the water flow is too slow. 3. The noise of the water inflow is too loud. >>Why Choose us 1. Universal Toilet Fill Valve Fits like the original, this universal toilet fill valve replacement kit has a US standard G15/16" inlet that fits most American toilets. The sleeve offers 813'' height adjustment to adapt to taller or shorter toilets tank. 2. Long Service Life Made of premium POM and PP material, the toilet flusher replacement kit has good corrosion resistance, can be used for 200, 000 cycles, the quality is reliable. There is a filter inside the water inlet to avoid impurities from entering the tank, which can be removed and cleaned when necessary. 3. Easy to Install This toilet float replacement kit is very easy to install, no problem for one person. According to the picture, remove the old toilet valve, adjust the new one to the same length as the old, then install it inside tank. Finally, just adjust the red valve to control the amount of water to be replenished. >>Package Included 2 x Toilet Fill Valve --- Height adjustable 8 to 13'' US standard G15/16" inlet