The WRCGV12-1915-1930-1990-2005-50-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.93 to 1.99 GHz, Bandwidth 60 MHz, Insertion Loss 1 to 2 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1915-1930-1990-2005-50-4 can be seen below.