The WBCGV12-2135-2145-2165-2175-50-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.145 to 2.165 GHz, Bandwidth 20 MHz, Center Frequency 2.155 GHz, Insertion Loss 3.5 to 4.5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-2135-2145-2165-2175-50-1 can be seen below.