The housing on my compressor was broken. This is an almost identical replacement part. I added 4 inlet ports in hopes of getting better performance, but it changed nothing. I still included the model because it looks a bit cooler, but it's unnecessary, and prints longer anyway.
The filter should fit tightly inside the housing. The bottom side seals on the chamfered edge, not the flat face, so the quality is not that important for that surface. The inside of the lid should be printed slowly, so it's a nice smooth surface - the filter fits against it.
I've included the STEP and F3D files too, if someone would like to modify. The newer compressor models come with a threaded filter I think. If you send me the thread dimensions, I can modify the filter so it would fit those compressors too.
PLA will probably work fine, the filter is mounted “in compression”. I would advise you print it from a less brittle material(PETG, ABS…). There are a lot of vibrations, and if the filter breaks, parts could get into the piston, which would not be good.
License: Creative Commons (4.0 International License) Attribution