The WRCGV12-1727.5-1735-1760-1767.5-30-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.735 to 1.76 GHz, Bandwidth 25 MHz, Insertion Loss 1 to 1.25 dB, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-1727.5-1735-1760-1767.5-30-2 can be seen below.