Symbol 3780 from ISO 7000 - Title/Meaning: Filter (plan/top view) Function/description: To indicate the device used to remove impurities from gases or liquids.
pay attention to orientation of symbol
Own work using: iso.org/obp/graphics/grs/8a5bbc6f-52d7-4c6b-8573-f9a2d5918f2b 200.png
Vectorization:  Mrmw