I have one new Kenwood CW Crystal Filter: YG-455C-1 for sale. To the best of my knowledge this filter will fit all Kenwood Transceivers form the TS-430 UP, including the TS-950SDX which is the unit I purchased it for. Price is $85.00USD + USPS Priority. Guarantied, or money refunded upon return. Regards & Thanks, Darrell