The WRCT40-1731.5-1732.5-1747.5-1748.5-50 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.7325 to 1.7475 GHz, Bandwidth 15 MHz, Insertion Loss 3.5 to 6 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT40-1731.5-1732.5-1747.5-1748.5-50 can be seen below.