secret jardin dr240

where can i find info on the inline fan ports? are they 6" or 4"? any help is great. thx

they are usually 6", 4", or 8" lol u need to be more specific

for my intake and outtake fans. im trying to figure out what size fans to get and i can't find the specs for the dr240 anywhere

on my buddies homeboxXL he had 6" on top for out take and 4" on the bottom for intake, are they all like that?