The WRCT8-813-813.8-814.2-815-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 813.8 to 814.2 MHz, Bandwidth 0.4 MHz, Insertion Loss 0.6 to 2 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-813-813.8-814.2-815-40 can be seen below.