Thanks Ryan, good point on being able to return it. Do you know how thick the core is or how many rows it has? I can't find much info on the Napa site.
Have you seen these? They look nice, are 4 core (2.44 in thick) and all aluminum.
https://www.ebay.com/itm/253878616552?ul_noapp=true
losing my cool over these radiators