Features: Ensures leakproof toilet experience with our Toilet Fill Valves Seal Replacement, craft from rubber to provide long time durability and performances. Designs for sealing, this Valves seal effectively prevents water leakage, maintaining dry and hygienic bathroom environment. For homeowners, landlords, and enthusiasts look to maintain their toilets efficiently without professional help. For use in family bathrooms, rental properties, hotel, and during home renovations to ensures the toilet tank functions daily use. This easy to installion replacement part is accessory with Kohlers 83143 and Fluidmasters models 242, 400, and 747, making it addition for various toilet systems. Specifications: Component: Rubber Color: Black Size: 2.9x2.9cm/1.14x1.14inch Package Includes: 5/10pcs Toilet Tank Fill Valves Seal note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.