- Compatible with 2-inch and 3-inch Flush Valve Openings: This kit includes both a 2-inch and a 3-inch gasket along with a bolt kit. The universal tank-to-toilet seal and hardware kit fits most two-piece toilet tanks with 2-inch and 3-inch flush valve openings. Please verify your toilet size before purchasing. - Reliable Sealing Performance: The black rubber gasket is crafted from high-quality rubber material, providing excellent elasticity and sealing capability. It effectively prevents water leaks while also dampening noise and vibrations produced during tank operation. - Durable Tank-to-Bowl Bolts: The toilet tank bolts are made from stainless steel, ensuring resistance to rust even after prolonged exposure to water. Each bolt measures 70mm (2.15 inches) in length, making them suitable for most toilet tank-to-bowl connections. - Easy Installation: This toilet tank to bowl gasket kit is designed for straightforward installation. It comes complete with all necessary accessories, allowing you to quickly resolve toilet leak issues without the need for professional help. Save money by handling repairs yourself. - Practical Use Scenarios: Ideal for DIY home repairs, this kit allows you to fix leaking toilets efficiently. Perfect for homeowners looking to maintain their plumbing system and avoid costly repairs, this product ensures a secure and long-lasting connection between the toilet tank and bowl.