The WRCT8-748-750.5-755.5-758-50-3 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 750.5 to 755.5 MHz, Bandwidth 5 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-748-750.5-755.5-758-50-3 can be seen below.