The ZBF9-S137.5-2.2-2155 from COM-MW is a Band Pass Filter with Frequency 136.675 to 138.325 MHz, Bandwidth 1.65 MHz, Center Frequency 137.5 MHz, Insertion Loss 3 dB, Rejection 30 dB. Tags: Surface Mount. More details for ZBF9-S137.5-2.2-2155 can be seen below.