The WRCT8-912.5-915-920-922.5-40 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 915 to 920 MHz, Insertion Loss 0.6 to 1.25 dB, Rejection 40 dB, VSWR 1.43:1, Center Frequency 917.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for WRCT8-912.5-915-920-922.5-40 can be seen below.