The WRCT20-2127.5-2132.5-2147.5-2152.5-80-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.1325 to 2.1475 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 WRCT20-2127.5-2132.5-2147.5-2152.5-80-3 can be seen below.