The WBCGV12-2137.5-2147.5-2162.5-2172.5-50-3 from Wainwright Instruments is a Band Pass Filter with Frequency 2.1475 to 2.1625 GHz, Bandwidth 15 MHz, Center Frequency 2.155 GHz, Insertion Loss 4.25 to 5 dB, Rejection 50 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-2137.5-2147.5-2162.5-2172.5-50-3 can be seen below.