The WRCGV12-1850-1860-1900-1910-60 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.86 to 1.9 GHz, Bandwidth 40 MHz, Insertion Loss 1 to 2.5 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1850-1860-1900-1910-60 can be seen below.