http://www.scan.co.uk/Products/Asete...(Oem-Brown-box)
http://www.scan.co.uk/Products/Alpha...-Oem-Brown-box)
http://www.scan.co.uk/Products/Aqua-...Radiator-31103
http://www.scan.co.uk/Products/XSPC-...Threaded-Ports)
http://www.scan.co.uk/Products/TFC-X...g-G1-4-Threads
TBH they all look much the same to me, the only obvious difference is the price, from the looks of them the £15 one would perform the same as the £56 one, I already have an xspc 120mm rad in my loop, and as I am going to ordering an akasa infinity case which has a mount for a 120x2 rad, I figured that I should buy one and add it to the loop, but can justify the cheaper ones, but don't think I could justify over 50 quid, unless the performance is much much much better (you could buy 3 of the cheapest one for less than the TFC one, and 4 of them for only a couple of quid more and I think I have a pretty good idea what would be better lol)