The WRCT16-817-819-834-836-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 819 to 834 MHz, Bandwidth 15 MHz, Insertion Loss 1 to 2 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-817-819-834-836-40-2 can be seen below.