The WBCTB10-2172.5-2180-2200-2207.5-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 2.18 to 2.2 GHz, Bandwidth 20 MHz, Center Frequency 2.19 GHz, Insertion Loss 2.5 to 3.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB10-2172.5-2180-2200-2207.5-40-2 can be seen below.