The WRCGV12-1825-1845-1880-1900-75 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.845 to 1.88 GHz, Bandwidth 35 MHz, Insertion Loss 1 to 2.5 dB, Rejection 75 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1825-1845-1880-1900-75 can be seen below.