Installation instructions are not provided with
any of the Vessels.

It is the responsibility of the Installer to determine the size or diameter of the hole based in the following circumstances.

1 - Type of installation.
        a - Partially recessed installation
        b - Above the Counter Top Installation.
2 - The Lavatory drain purchased.
3 - If a spacer or Ring was purchased
        a.  Inside Diameter of the Ring.
4 - Thickness of the material where it is being installed.
5 - Material used for support or the Top.