Used Very Good W4RT Electronics OPF-CW Filter for FT-857D SN112568

Used Very Good W4RT Electronics OPF-CW Filter for FT-857D SN112568

One-Plug Filter - CW Filter for the FT-817, FT-857, and FT-897

• 7-pole Collins Mechanical Filter identical in performance to the Yaesu YF-122C optional 500-Hz CW filter
• Installs just like the Yaesu filter does
• Filter unit contains the coding for the FT-857 or FT-897 to recognize it as a 500 Hz CW filter
• Only real difference is the price!