【Wide Compatibility】Designed for most 2-inch two-piece toilets (not for one-piece toilets). Fits flush valve openings 2.4"–2.8" and the tank button hole diameter 1.9"–2.2".Please check our size-measurement guide in the images before ordering.Compatible with Glacier Bay, compatible with Toto, WaterRidge, Kohler, American Standard, Aquasource, and more 【Dual Flush Valve – Eco & Powerful】Upgrade your toilet with this toilet flusher replacement kit featuring full and half-flush options. Enjoy powerful waste removal with the full flush mode and reduce water use (and bills!) with the half flush mode — perfect for everyday light flushing. Easily adjustable water levels let you customize performance and maximize efficiency for both solids and liquids 【Restore & Boost Toilet Power — Say Goodbye to Leaks & Wobbling】Upgrade your toilet’s performance with this toilet repair kit inside tank, designed to stop leaks, improve flushing power, and eliminate wobbling. Including a toilet flush valve, push button, toilet fill valve, durable mounting bolts, and a secure tank-to-bowl gasket, it quickly fixes common issues like worn flappers, weak flushes, and unstable tanks. This dual-flush toilet kit restores factory-level performance — making your toilet flush like new again without replacing the entire system 【Easy, Flexible Installation】This toilet tank replacement kit is designed for fast, easy to install and maximum flexibility. The toilet dual flush valve, fill valve height (adjustable from 8"–13"), push-button rod length, and overflow pipe height can all be customized to match your tank setup, ensuring a precise fit and smooth flushing`.Moreover, this toilet fill valve can also remain silent during the filling process, making your life more comfortable and quiet 【Durable Premium Materials】This toilet repair kit is built with high-quality ABS components for superior durability and stable performance under varying water pressure. The reinforced flush valve and push button resist corrosion and wear, while the extra-thick rubber seal creates a tight, secure fit to prevent leaks and extend the life of your toilet system 【Please Note】This toilet parts inside tank kit fits two-piece toilets with a 2-inch flush outlet and dual-flush button only — not compatible with one-piece toilets. Please refer to the size guide in the product images to measure your flush valve before ordering to ensure proper fit. We water-test every kit to guarantee performance; slight moisture on the parts is normal. Trim the button stem as needed — keep about 1/16 inch（1mm） of clearance to avoid contact with the flush valve button for smooth, reliable operation 【Wide Compatibility】Designed for most 2-inch two-piece toilets (not for one-piece toilets). Fits flush valve openings 2.4"–2.8" and the tank button hole diameter 1.9"–2.2".Please check our size-measurement guide in the images before ordering.Compatible with Glacier Bay, compatible with Toto, WaterRidge, Kohler, American Standard, Aquasource, and more 【Dual Flush Valve – Eco & Powerful】Upgrade your toilet with this toilet flusher replacement kit featuring full and half-flush options. Enjoy powerful waste removal with the full flush mode and reduce water use (and bills!) with the half flush mode — perfect for everyday light flushing. Easily adjustable water levels let you customize performance and maximize efficiency for both solids and liquids 【Restore & Boost Toilet Power — Say Goodbye to Leaks & Wobbling】Upgrade your toilet’s performance with this toilet repair kit inside tank, designed to stop leaks, improve flushing power, and eliminate wobbling. Including a toilet flush valve, push button, toilet fill valve, durable mounting bolts, and a secure tank-to-bowl gasket, it quickly fixes common issues like worn flappers, weak flushes, and unstable tanks. This dual-flush toilet kit restores factory-level performance — making your toilet flush like new again without replacing the entire system 【Easy, Flexible Installation】This toilet tank replacement kit is designed for fast, easy to install and maximum flexibility. The toilet dual flush valve, fill valve height (adjustable from 8"–13"), push-button rod length, and overflow pipe height can all be customized to match your tank setup, ensuring a precise fit and smooth flushing`.Moreover, this toilet fill valve can also remain silent during the filling process, making your life more comfortable and quiet 【Durable Premium Materials】This toilet repair kit is built with high-quality ABS components for superior durability and stable performance under varying water pressure. The reinforced flush valve and push button resist corrosion and wear, while the extra-thick rubber seal creates a tight, secure fit to prevent leaks and extend the life of your toilet system