The WRCJV12-1910-1920-1980-1990-35-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.92 to 1.98 GHz, Insertion Loss 1 to 2.5 dB, Rejection 35 dB, VSWR 1.50:1, Center Frequency 1.95 GHz. Tags: Module with Connectors, Cavity Filter. More details for WRCJV12-1910-1920-1980-1990-35-4 can be seen below.