WP 20150324 16 32 31 Pro 2

So weirdly, the Cosmos II is really bad for water cooling. It's big, but poorly thought out. So while it looks like a 360 rad would work up top. In reality, the mesh would cover the third fan completely. A 240 rad however would fit perfectly with the mesh, but then the holes would be restricting almost 1/3rd the air flow. Solution? Take a dremmel cutter to a 350USD case.