The BRF-130-20-L5 from COTS RF is a Band Stop Filter with Stopband Frequency 120 to 140 MHz, Bandwidth 20 MHz, Insertion Loss 1 dB, Rejection 60dB @ 130 MHz, VSWR 2.00:1. Tags: Module with Connectors, Notch Filter. More details for BRF-130-20-L5 can be seen below.