Mighty Cord (30A25FDTB 25' 30 Amp Detachable Cordset Rodale - Detachable RV Power Cords with locking ring for 30 amp and 50 amp service Constructed with heavy-duty cable and watertight connection for safe, outdoor use CSA Approved Detachable 30 amp Power Cord 25 Feet Rating: 10/3 STW