The WRCT8-917.2-918-918.4-919.2-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 918 to 918.4 MHz, Bandwidth 0.4 MHz, Insertion Loss 0.6 to 2 dB, Rejection 40 dB, VSWR 1.43:1. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-917.2-918-918.4-919.2-40 can be seen below.