The WRCGV8-1820-1835-1850-1865-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.835 to 1.85 GHz, Bandwidth 15 MHz, Insertion Loss 0.65 to 0.75 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-1820-1835-1850-1865-40-2 can be seen below.