This pair of adapter plates that slot together
lets you mount 3x 140mm fans to a 360mm AIO Radiator, assuming you have 3x side-by-side touching 140mm case fan slots on the case. Save money by not buying a 420mm radiator and get better airflow with less noise since you can now use larger fans against the 360mm radiator. Also, the adapter plates provide a 30mm radiator shroud or plenum further making the fans work efficiently.
This is the side offset version - intended for when you want the radiator on the outside, but its hosing doesn't rotate, it's very close, or otherwise you can't get it around the larger 140mm fans. The normal centered version is here: https://www.ebay.com/itm/304778810393
Fits standard 140mm fans and 360mm radiators. Will almost certainly fit unless you have a really strange fan; if in doubt refer to the technical drawing and measure your 140mm fans, radiator, and make certain you can mount 3x 140mm fans to your case so that they are touching!
COMES WITH ALL THE SCREWS YOU NEED TO MOUNT PLATES TO RADIATOR AND FANS TO PLATES. IF YOUR RADIATOR DOESN'T TAKE M4 OR #6-32 SCREWS THOUGH YOU WILL NEED YOUR OWN SCREWS.
If you need an adapter for other sizes to other sizes let me know and I can design one for you.
ONLY ONE ADAPTER (2 plates that slot together), TWELVE (12) M5 SELF-TAPPING SCREWS , TWELVE (12) M4 SCREWS, AND TWELVE (12) #6-32 SCREWS INCLUDED.