Corsair 275R Airflow an aio upgrade fit advice?

[johnny45]

im looking to upgrade my rear aio from my arctic freezer II 120

 

to either a

 

Bykski B-RD120-TK60 radiator copper 120mm (60mm thickness)

 

 

or a

 

Aquacomputer airplex radical 4/120, aluminum fins

 

 

would either fit in the rear slot of

 

my Corsair 275R Airflow ATX Mid Tower Case

 

currently my arctic is

 

mounted in the rear in a pull con-fig with a single noctua fan with some after market filter mesh

 

between the case an aio , both ways of config push or pull have no change in performance the pull is

 

easier to clean with a shopvac from the outside so thats th reason for pull config