Drain cover
A drain cover is a cover with holes in it or a grating used to cover a water drain. It allows the drainage but in the same time it prevents bigger objects to be flushed in the drain.
Drain covers made of stainless steel are a subset of the stainless steel strainers, which are used not only for covering drainage but in general to filter the water in a water system.
A sink drain cover is a drain cover used to cover the sink drain.
