A sidewalk drain, one section on the pavement, and the other part with the drain openings located at the foot of the sidewalk.
The groove structure at the bottom is the same as another cover made by the same manufacturer Click for cover's details
In 2019, the same cover was photographed at HaGdud Haivri St 8, Raanana, Israel, where the upper part was made by another manufacturer and on which it is written: Yetzikat Hamifratz, YH, 020304, 04-8725701 Click for a larger image Translation of the text on the cover
On the top:
On the bottom: