Look at the specs for it, I have a couple that I use that do a great job of blocking out the FM radio band and not affecting VHF low or 110MHz and higher. My favorite is a Channel Master FM filter with SMA adapters on it.
I can still pickup aircraft and NOAA weather radio just fine with it. Actually better since the FM radio station near me is pretty well attenuated and I no longer get any harmonics from it.