The WRCGV14-909-921-960-972-45 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 921 to 960 MHz, Bandwidth 39 MHz, Insertion Loss 1.25 to 1 dB, Rejection 45 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV14-909-921-960-972-45 can be seen below.