The ECA2492P24B90B from ECHO Microwave is a Band Pass Filter with Frequency 2.48 to 2.5 GHz, Insertion Loss 1 dB, Rejection 90 dB @ 2417&2567MHz, Ripple 0.5 dB, Return Loss 18 dB. Tags: Cavity Filter. More details for ECA2492P24B90B can be seen below.