I have for sale an Icom FL101 250HZ CW filter which works just fine. This fits in the 706series/725/726/728/729/737/737/738/746/756 series of radios. It will not fit in the 703/718/707 series, as those use the 455khz IF filters. I am asking $80 shipped in the US and can take paypal/check/MO. 73 John AF5CC