The WRCJV12-2100-2110-2170-2180-35-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 2.11 to 2.17 GHz, Bandwidth 60 MHz, Insertion Loss 1 to 2.5 dB, Rejection 35 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCJV12-2100-2110-2170-2180-35-4 can be seen below.