This compact internal DSV valve can be used for fuel tanks that have -12AN ORB female threads. The external -8AN male fitting is used for all standard fuel filling. The 1-piece machined part is manufactured from billet 6061 aluminum and type-II anodized. Included are 2 ball valves, FKM Viton O-ring, and a stainless steel retaining ring. These materials are compatible with all fuel types including alcohol fuels such as methanol and E85. It can easily be disassembled for quick cleaning, inspection, and maintenance. NOTE: This DSV comes standard on the Radium 20-049X-XX FCST.