be quiet! Pure Rock Slim replacement or additional fan

Tinkeu

Prominent
Mar 8, 2017
3
0
510
I have a be quiet! Pure Rock Slim, it has one fan (92mm 2000rpm), I wan't to add another one to set it up in push pull config but I'm confused as to which fan is the same in the be quiet! line up, all their 92mm fan are listed as 1800rpm but the one that comes with the cooler is 2000rpm. Is using a 1800 rpm one a problem ? What could be the exact fan like the one that came with the cooler ?