The WRCGV12-1722.5-1730-1735-1742.5-80-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.73 to 1.735 GHz, Bandwidth 5 MHz, Insertion Loss 1 to 2.5 dB, Rejection 80 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1722.5-1730-1735-1742.5-80-1 can be seen below.