Wide Compatibility: This 3 inch toilet repair set fits most two piece toilets with flush openings between 3.2 " 3.6 " And button holes measuring 1.9 " 2.2 " Please verify measurements using the included guide before ordering Designed for common flush gate configurations (not consistent single unit models Dependable ABS Construction: Sturdy components resist wear while reinforced rubber seals provide leak proof associations, maintaining consistent function across various water pressure conditions for long term use Flush Efficiency: Upgrade your toilet with complete flush and partial flush options—powerful waste removal for solids and water saving function for liquids The adjustable water control feature enables individualized settings for different flushing needs while maintaining effective results Enhanced Flushing: Fix leaks, weak flushes, and unsteady tanks with this complete set including flush mechanism, push button, fill gate, mounting hardware, and sealing gasket Restores proper flushing action without requiring full structure replacement Adjustable Installation: Customize mechanism height (8 " 13 "), button rod length, and flood tube position for perfect fitment Quiet fill technology ensures peaceful action with easy installation using basic household tools, Manufacturer: HZBB