Review on 📻 FM Bandstop Filter v2 (FM Notch Filter) - Flamingo+ FM - Enhancing Software Defined Radio (RTL-SDR) Applications by Blocking Interfering 88-108MHz Frequencies from SMA-Connected Radios by Patrick Burton

This is a much better filter than the original model for most applications requiring an FM tag. His shoulders are much sharper and so you can use the planes band, which is almost useless with the V1 filter. (See my sweeps above for both filters. The V2 filter is much sharper of the two.) Attached, this is just a reference image of what you will receive to show its overall size compared to the N-SMA adapter and load . This gives you an idea of how small it really is. These things are about the size of a large matchbox. Hooray!