The WRCGV8-781-791-821-831-30-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 791 to 821 MHz, Bandwidth 30 MHz, Insertion Loss 0.75 to 1 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV8-781-791-821-831-30-2 can be seen below.