Best 140mm fan

I'm also looking for a good fan for my radiator and found this one
http://www.thewatercoolingshop.co.uk/yate-loon-d14sh-12...
it goes up to 2300 rpm, so twice as fast as the most others

here you see the performance results
http://www.coolingtechnique.com/recensioni/74/606.html?...
and the graph
http://www.coolingtechnique.com/recensioni/74/606.html?...

in italian.

make sure you look for the results of the
yate-loon-d14sh-12-140mm
and not confuse with the smaller or slower fans  

Cougar vortex 140mm fan: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

But if you like the nzxt color scheme, you can get their own: http://www.newegg.com/Product/Product.aspx?Item=N82E168...