The CB2135/70SK-B5 from G-WAY Microwave is a Band Pass Filter with Frequency 2100 to 2170 MHz, Bandwidth 70 MHz, Center Frequency 2135 MHz, Insertion Loss 0.8 dB, Rejection 40 to 80 dB. Tags: Module with Connectors, Cavity Filter. More details for CB2135/70SK-B5 can be seen below.