The CB2600/200SK-B from G-WAY Microwave is a Band Pass Filter with Frequency 2500 to 2700 MHz, Bandwidth 200 MHz, Center Frequency 2600 MHz, Insertion Loss 0.4 to 0.5 dB, Rejection 30 to 35 dB. Tags: Module with Connectors, Cavity Filter. More details for CB2600/200SK-B can be seen below.