Had a change in plans and find I cannot use a new FL-232 filter I bought. This is 350 Hz filter for 9MHz IF in radios like the IC-706, all flavors, and the 746. It also fits the original 756 and may fit the 756PRO but not sure. You will have to check your instruction manual. Anyhow I paid over 100.00 for it. Want 75.00 shipped Priority Mail in the US. 73, Charlie, W0YG..>>