The WRCT20-2032.5-2037.5-2052.5-2057.5-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.0375 to 2.0525 GHz, Bandwidth 15 MHz, Insertion Loss 2.25 to 3.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT20-2032.5-2037.5-2052.5-2057.5-80 can be seen below.