pH:
Bix rads.
The old fan housings are a couple of old Rad shack 120mm 120 volt AC fans that didnt work according to plan. So I ripped the fan parts and internal bracing out of them ( they are made of metal) and used them as a spacer. Seems to work fine, it just something I had laying around and I needed a spacer so I said Why not use these?
Oh and the spacers are on the exit side air is pulled from bottom and exits out the back of case