The WRCGV5-831.5-851.5-866.5-886.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 851.5 to 866.5 MHz, Bandwidth 15 MHz, Insertion Loss 0.5 to 0.6 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV5-831.5-851.5-866.5-886.5-40 can be seen below.