The WBCTB8-2431.75-2436.75-2446.75-2451.75-40 from Wainwright Instruments is a Band Pass Filter with Frequency 2.43675 to 2.44675 GHz, Bandwidth 10 MHz, Center Frequency 2.44175 GHz, Insertion Loss 2.25 to 3.25 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCTB8-2431.75-2436.75-2446.75-2451.75-40 can be seen below.