The AM88.6CR155 from Anatech Electronics is a Band Pass Filter with Frequency 88.6 MHz, Bandwidth 0.15 KHz, Center Frequency 88.6 MHz, Insertion Loss 3.0 dB, Lower Rejection 20 dB at Fc +/-250 kHz. Tags: Surface Mount, Crystal Filter. More details for AM88.6CR155 can be seen below.