This is a Oil Mist Filter from the M standard white series.
|Port Size||20 (3/4)|
|Port Thread||Blank (Rc)|
|Drain discharge||F1 (Auto-drain, manual override, normally closed, no pressure -> no exhaust)|
|Differential Pressure||Q3 (Differential pressure indicator and switch 1-point SW2)|
|Flow Direction||Blank (Standard flow - left -> right)|
|Pipe adaptor set||Blank (Not attached)|