The WBCTB3-1985-2015-2020-2050-40-1 from Wainwright Instruments is a Band Pass Filter with Frequency 2.015 to 2.02 GHz, Bandwidth 5 MHz, Center Frequency 2.0175 GHz, Insertion Loss 1.25 to 1.75 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB3-1985-2015-2020-2050-40-1 can be seen below.