The WRCGV12-2112.5-2122.5-2142.5-2152.5-75-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.1225 to 2.1425 GHz, Bandwidth 20 MHz, Insertion Loss 1 to 2.5 dB, Rejection 75 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-2112.5-2122.5-2142.5-2152.5-75-1 can be seen below.