You want to know if the Manual Bidet Seat fits on your current WC ceramic?
If you can answer all the following questions with "Yes", your existent WC ceramic can be upgraded with the GROHE Manual Bidet Seat.
Does your existent WC-ceramic have a circular shape?
Does your existent WC-ceramic have an even surface?
Is measurement A between 122 and 158 mm?
Is measurement B between 345 and 375 mm?
Is measurement C at most 324 mm long?
Is measurement D at least 497 mm long?
Is the measurement E between 405 and 459 mm?