They say that Collins will no longer manufacture those wonderful mechanical filters that so many of us love after the immenent, and limited, final production run. Seems that DSP technology and the concominant ever dropping cost has finally doomed these fine Collins products after over 65 years since their introduction. In case you are not aware, it takes about 12 weeks to manufacture one of these filters!
Those of you who own the FT-817/ND, FT-857, FT-897/D, FT-1000MP, Field, & Mark V, FT-2000/D, IC-703 (Plus), IC-718, and so on should consider seriously if you don't already have the filters you want, to go ahead and purchase them while these filters are still available (and the prices have not risen yet). Collins says that when they are gone, they will be gone forever.
If you want these filters, check with www.w4rt.com, www.gigaparts.com, www.hamradio.com, www.aesham.com, etc. All of these organizations also offer the dual CW/SSB filter for the FT-817 made by W4RT Electronics.