This base gasket is intended for a brass and Sifoblic siphon (oblique shape) for washbasin. It ensures a perfect seal at the connection of the base to the body of the siphon. Its outer diameter of 48.8 mm and inner diameter of 42 mm, for a total thickness of 2 mm. Flexible, it is easy to install.
In black elastomer, this flat seal is sold in sets of 2 units. This spare part for washbasin traps ref 1503 or 6060 does not require any special cleaning.