The WRCT8-913.5-915.5-919.5-921.5-35 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 915.5 to 919.5 MHz, Bandwidth 4 MHz, Insertion Loss 0.6 to 1.25 dB, Rejection 35 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-913.5-915.5-919.5-921.5-35 can be seen below.