The WRCGV12-687-698-728-739-80 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 698 to 728 MHz, Bandwidth 30 MHz, Insertion Loss 1.25 to 1.75 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-687-698-728-739-80 can be seen below.