The WRCT8-712-717-728-733-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 717 to 728 MHz, Bandwidth 11 MHz, Insertion Loss 0.6 to 1 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-712-717-728-733-50 can be seen below.