Generic Replacement Hitachi Window Wall Mounted Portable Air Conditioner Remote Control Compatible for Remote Control Model Number Rar-35z Rar-22z Rar-24z Rar-21z Compatible for all kinds of brands remote control, as long as your old remote control model number belongs to following model:RAR-35Z RAR-22Z RAR-24Z RAR-21Z Compatible for Hitachi and other brands air conditioner remote control model: RAR-35Z RAR-22Z RAR-24Z RAR-21Z RAR-35Z RAR-22Z RAR-24Z RAR-21Z RAR-35Z Rar-22z