The ECRA2110C2170B25BFMP from ECHO Microwave is a Band Stop Filter with Stopband Frequency 2110 to 2170 MHz, Bandwidth 60 MHz, Insertion Loss 1.0 dB ( 1400-2030, 2250-2700 MHz), Rejection 25 dB. Tags: Module with Connectors, Ceramic Filter. More details for ECRA2110C2170B25BFMP can be seen below.