They're "Brass tubes, louvered copper fins". Swiftech is considered one of the leading premium brands in the watercooling industry and their products are top notch.
So technically you can put the 280mm rad anywhere along the length of the top radiator bracket (I see that the screw holes of the bracket aren't fixed allowing for movement along its length) and not limited to just the rear fan slot and the middle fan slot, correct?
What reservoir height can this case accommodate with the 280mm GTS and 25mm-thick fans installed in the top and without the rad bracket removed?
Yeah, I was thinking about the ball valve fitting as well. Do you always do the filling on top of the reservoir with a fill line?
Ahh ok. Well you know more about them then I do. I just stick with EK as a lot of their water cooling parts are top notch. I am not sure if you can put it anywhere. I never really looked at the rad tray. I want to say yes to being able to have a slider type screw hole that gives you a tolerance.
I use 250mm reservoir in mine with the tray removed. You won't be able to fit that in there with the pump when sitting on top of the pump bracket. I have my pump sitting in the basement with a small 2" tube feeding to the reservoir. I put my drain at the bottom of my loop which is "Teed" off the radiator. I made my own fill port tube that bends down into the top of the reservoir. I also have an added top port fill to my reservoir that you purchase separately. You always fill it at the top of your reservoir. Never run your pump DRY.