The WBCTB10-2115-2122.5-2142.5-2150-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.1225 to 2.1425 GHz, Bandwidth 20 MHz, Center Frequency 2.1325 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-2115-2122.5-2142.5-2150-40-1 can be seen below.