The WRCGV12-2170-2180-2200-2210-75-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.18 to 2.2 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 WRCGV12-2170-2180-2200-2210-75-1 can be seen below.