Yaesu YF-110S (XF-110S) 2.6khz SSB filter (marked as XF-455K-262-01 per Yaesu) in Excellent shape. Works in the FT-1000 (as an upgrade to the stock filter), FT-900, FT-890, and perhaps others (please check your manual). In some radios it will plug in, in others you will solder in (you simply unsolder it from the board it's on), please check your manual, I can unsolder it for you if needed. . This is a "must have" for the SSB user. Buyer pays shipping for a well packed box. Buy from me with confidence as I have Excellent feedback.