The FBF-118 from Metropole Products Inc. is a Band Pass Filter with Frequency 291 to 318 MHz, Bandwidth 27 MHz, Center Frequency 304.5 MHz, Insertion Loss 1.0 dB, Rejection 40 dB - 90 dB @ 0 - 3000 MHz. Tags: Module with Connectors. More details for FBF-118 can be seen below.