Air Venturi EC-3000 Compressor Filter set up need HELP

Hello,

I just bought an Air Venturi EC-3000 compressor and I want to use my 2 level air filter to this unit but the fittings that came to the filter is too big to go in the output part of the compressor. So I need a male to female adapter fitting but I don't know what size to order. If you have experienced or encountered this before, can you please help me. This is the filter that I want to add to this compressor. Thanks you very much in advance.

VEVOR High Pressure Air Filter 30 MPa, Oil Water Separator with 2 Filters, Water-Oil separator Filtration Two Stage Filtration, 90%-95% High Pressure Filter for Air Compressor Air Pump Scuba Diving 
 
see that ad next to it at the top for the 49$ one .. thats the one you need ... i wouldnt do too much over-kill there, but thats me .. messin around with that chinese crp you run into alot of metric stuff .. then your going to have to go to a place that sells high-end hydraulic and pneumatic fittings and get adapters etc and spend another 150 bucks ... just sayin ..