The WRCT8-872.5-876.5-886.5-890.5-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 876.5 to 886.5 MHz, Bandwidth 10 MHz, Insertion Loss 0.6 to 1 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-872.5-876.5-886.5-890.5-40-1 can be seen below.