The WBCTB8-2585-2590-2600-2605-40-5 from Wainwright Instruments is a Band Pass Filter with Frequency 2.59 to 2.6 GHz, Bandwidth 10 MHz, Center Frequency 2.595 GHz, Insertion Loss 2.25 to 3.25 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB8-2585-2590-2600-2605-40-5 can be seen below.