Washer between sink and countertop
- It makes it easier to fasten and seal the washbasins on a countertop, where the washbasins at the bottom do not have a flat surface
- Transparent seal at the top and bottom of the washer
- The drain that passes through the pad may have a click-clack system (example WA43451 ) and may not (example WF43451 , for washbasins without overflow)
