There are two different size China made aluminum radiators on ebay that i'm looking at.
Larger
Core size: H270mm×W 258mm×T50mm (H10-5/8"×W10-1/8" ×T2")
Overall Size(in) approx: (H14-1/8"× W10-5/8"×3-1/4") H359mm×W270mm×T83mm
Inlet/Outlet: 25mm / 25mm
Rows: 2

Smaller
Core size: H270mm×W 258mm×T42mm (H10-5/8"×W10-1/8" ×T1-5/8")
Overall Size(in) approx: (H14-1/8"× W10-5/8"×2") H359mm×W270mm×T51mm
Inlet/Outlet: 25mm / 25mm
Rows: 2

The smaller one is $50 cheaper, but would it even be worth it in the first place since the core is 3/8" smaller?
Or is the smaller radiator designed for use with the "tropical fan"? (Which I have been thinking about getting to help with cooling)