These are called "bathroom fixtures" (in America).

Of course, in America we don't have w.c.—we call it the "toilet".

These are called "bathroom fixtures" (in America).

Of course, in America we don't have a w.c.—we have bathrooms, which include a fixture called the "toilet".

And we have never heard of these "sanitary fittings" mentioned in other answer. So it would be good to clarify what country you want terminology for.