The WRCT16-808.5-810.5-820.5-822.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 810.5 to 820.5 MHz, Bandwidth 10 MHz, Insertion Loss 1 to 1.75 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-808.5-810.5-820.5-822.5-40 can be seen below.