The WRCT8-721-721.8-722.2-723-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 721.8 to 722.2 MHz, Bandwidth 0.4 MHz, Insertion Loss 0.6 to 2.5 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-721-721.8-722.2-723-50 can be seen below.