What packaging information helps customers install toilet repair parts correctly?

Clear packaging information can reduce confusion during installation. It is recommended to show the product name, compatible specifications, installation direction, parts list, and important notes on the package. For example, a fill valve package should indicate the inlet connection size, while a flush valve package should show the compatible flush outlet size. Bolts, gaskets, and seals should also be clearly marked with their installation positions. For retail packaging, a QR code can also be added so customers can easily access installation videos or digital manuals.