The WRCT10-2040-2042.5-2047.5-2050-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.0425 to 2.0475 GHz, Bandwidth 5 MHz, Insertion Loss 1.25 to 2.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT10-2040-2042.5-2047.5-2050-40-1 can be seen below.