The WRCGV8-1815-1830-1855-1870-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.83 to 1.855 GHz, Bandwidth 25 MHz, Insertion Loss 0.75 to 1.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-1815-1830-1855-1870-40 can be seen below.