The ECA2535P70B60B from ECHO Microwave is a Band Pass Filter with Frequency 2.5 to 2.57 GHz, Insertion Loss 0.9 dB, Rejection 60 dB @ DC to 2400MHz, Ripple 0.6 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECA2535P70B60B can be seen below.