The WRCT8-746-748.5-753.5-756-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 748.5 to 753.5 MHz, Bandwidth 5 MHz, Insertion Loss 0.6 to 1.25 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-746-748.5-753.5-756-40-2 can be seen below.