The WBCTB8-2130-2135-2145-2150-40-2 from Wainwright Instruments is a Band Pass Filter with Frequency 2.135 to 2.145 GHz, Bandwidth 10 MHz, Center Frequency 2.14 GHz, Insertion Loss 2.25 to 3.25 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB8-2130-2135-2145-2150-40-2 can be seen below.