Question Question about CPU cooler fan depth

[FailG]

Hi, I have a question. I'm was looking to buy NZXT Aer P120 coolers, and I saw they were 26mm in depth. Now the CPU cooler I already have has a fan that is 25mm in depth. Do you think that there might be some problems or will it mount without any problems?
The cooler in question if anyone is interested: LC-CC-120-RGB: LC Power (lc-power.com)

 

[Fix_that_Glitch]

What case are you putting in?