External Mount Case Fan

[Animesh786]

I have an old pc case which supports 80mm x4 and 70mm x1 fans. But I am going to install a liquid cooler.
So are there any options of buying a bracket to mount the fan either internally or externally?

I am from India so pls give links which are products available in India.

 

[CountMike]

Drill holes, screw radiator thru them. Holes are at same places and distances as for fans of the size that comes with radiators.

 

[Paperdoc]

I agree with CountMike, and add one suggestion. Also buy wire grilles that you can screw onto the outside of the fans so that you can't stick your fingers into turning blades by accident. Something like this:

https://www.amazon.com/80mm-Black-Finger-grills-screws/dp/B01H0P4HWE/ref=sr_1_11?ie=UTF8&qid=1483291571&sr=8-11&keywords=computer+fan+grill