The WRCT8-921.5-923-925-926.5-50-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 923 to 925 MHz, Bandwidth 2 MHz, Insertion Loss 0.6 to 1.75 dB, Rejection 50 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-921.5-923-925-926.5-50-2 can be seen below.