The WRCT8-721.4-721.9-722.1-722.6-30 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 721.9 to 722.1 MHz, Bandwidth 0.2 MHz, Insertion Loss 0.6 to 2 dB, Rejection 30 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-721.4-721.9-722.1-722.6-30 can be seen below.