The WRCGV6-1685-1710-1785-1810-20-4 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 1.71 to 1.785 GHz, Bandwidth 75 MHz, Insertion Loss 0.65 to 1 dB, Rejection 20 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-1685-1710-1785-1810-20-4 can be seen below.