Measurements of undercounter models represent interior measurements / When using Design Siphon #0050361092 (sold separately) please observe outlet hight from upper surface of finished floor to center of outlet in accordance with the technical specification sheet / Push-open waste (#0050521092) required in conjunction with wall mounted tap fitting, vanity unit and/or consoles / Undercounter basin only in combination with variable console of Fogo, 2nd floor, X-Large, Happy D. and vanity units for undercounter basins of Ketho, see the furniture section. Delivery only in combination of console or vanity unit with attached washbasin