This is the Radiator Fan you would want to have.. one direction ang iyang flow sa air.. so m.go through rah cya sa imong rad, rather than magbangga2 ang air sa iyang fins..
based on local supply, the easiest to get nga fan for that application is the Silverstone AP121 SilverStone Technology Co., Ltd.- AP121
higher RPM nah xa, then better SP pero lower CFM, although CFM is needed, pero for SP fans, this does not carry much weight for radiator fans..