The WBCTB3-2560.5-2590.5-2595.5-2625.5-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.5905 to 2.5955 GHz, Bandwidth 5 MHz, Center Frequency 2.593 GHz, Insertion Loss 1.25 to 1.75 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB3-2560.5-2590.5-2595.5-2625.5-40-1 can be seen below.