The WBCGV12-2538-2558-2628-2648-60 from Wainwright Instruments is a Band Pass Filter with Frequency 2.558 to 2.628 GHz, Bandwidth 70 MHz, Center Frequency 2.593 GHz, Insertion Loss 1.75 to 2.75 dB, Rejection 60 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-2538-2558-2628-2648-60 can be seen below.