The ECA158P2CL25BM from ECHO Microwave is a Band Pass Filter with Frequency 157.26 to 159.15 MHz, Insertion Loss 1 dB, Rejection 25 dB @ 153 to 156.015MHz, Ripple 1 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA158P2CL25BM can be seen below.