The WRCGV12-1872.5-1880-1885-1892.5-80-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.88 to 1.885 GHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1872.5-1880-1885-1892.5-80-2 can be seen below.