The WRCGV12-861.5-871.5-891.5-901.5-70-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 871.5 to 891.5 MHz, Bandwidth 20 MHz, Insertion Loss 1.25 to 2 dB, Rejection 70 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-861.5-871.5-891.5-901.5-70-2 can be seen below.