Disclosed is a novel split header for use in a rolling mill. The split header has a mounting block and a quick-change header cartridge, wherein the mounting block is coupled to the quick-change header via a quick-disconnect feature, the quick-disconnect feature configured to enable uncoupling (in a toolless manner) of the quick-change header from the mounting block. Additionally, the quick-change header cartridge may be replaced by a dummy header cartridge that diverts water when stand is dummied, and a split base and header cartridge design. Further, the mounting block may have one or more sensors and the quick-change header may have an RFID tag, where the sensors and the RFID tag may communicate with a central computer.