The WRCT16-916.5-917.5-921.5-922.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 917.5 to 921.5 MHz, Bandwidth 4 MHz, Insertion Loss 1 to 2.5 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT16-916.5-917.5-921.5-922.5-40 can be seen below.