The ZFBP-13.5 from Mini Circuits is a Band Pass Filter with Frequency DC to 0.03 MHz, Bandwidth 0.03 MHz, Center Frequency 13.5 MHz, Insertion Loss 1.5 to 3 dB, Rejection 20 dB @ 8 MHz. Tags: Module with Connectors. More details for ZFBP-13.5 can be seen below.