The WRCT10-2129.495-2131.875-2133.125-2135.505-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.131875 to 2.133125 GHz, Bandwidth 1.25 MHz, Insertion Loss 1.25 to 1.5 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2129.495-2131.875-2133.125-2135.505-50 can be seen below.