The WRCT8-871.035-872.385-873.615-874.965-40-1 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 872.385 to 873.615 MHz, Insertion Loss 0.6 to 1.5 dB, Rejection 40 dB, VSWR 1.43:1, Center Frequency 873 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-871.035-872.385-873.615-874.965-40-1 can be seen below.