Replacement valve for the any Pro Gate 12V ram with eternal wiring. It can replace the older model Parker DX valve. If a spare air ram is not in your budget, then a spare valve is your best defense from being down. These valves are simple to install with a 4mm Allen wrench. Comes with the Speakon connection. An adapter may be needed if your ram cable is the smaller 4 pin connector which is available on this site.