These are not genuine Franke or Blanco. They can fit in place of an old Franke or Blanco sink strainer waste with the rectangular overflow with the bolt through the grate (below). PLEASE CHECK THE DIMENSIONS TO CONFIRM.
Please note that the new colour scheme for the plastic on these valves are black. Other than the colour they are identical to the original white colour in every way
For stainless steel sinks, full bowl or half bowl with the larger 90mm hole
Chrome finish
Metal plug and waste insert
Basket strainer design
Please see images for dimensions