The WRCTG12+8-2110.5-2112.5-2152.5-2154.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.1125 to 2.1525 GHz, Bandwidth 40 MHz, Insertion Loss 2 to 4 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCTG12+8-2110.5-2112.5-2152.5-2154.5-40 can be seen below.