Aquarium power filter inlet strainer

This is a perforated filter inlet strainer I made for a Fluval 307. The inner diameter is 18mm. The strainer is 50mm in diameter to maintain flow. The back is flat and non-perforated.

Print vertically without supports.

I did not model the floating ball valve present on the original strainer.

Update: The original filter had 2mm holes. By request, I uploaded a version with 1mm holes. I did not print this version.