The WBCTB10-2122.5-2130-2150-2157.5-40-3 from Wainwright Instruments is a Band Pass Filter with Frequency 2.13 to 2.15 GHz, Bandwidth 20 MHz, Center Frequency 2.14 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-2122.5-2130-2150-2157.5-40-3 can be seen below.