The WRCGV6-921-924-928-931-25 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 924 to 928 MHz, Bandwidth 4 MHz, Insertion Loss 0.65 to 1.25 dB, Rejection 25 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV6-921-924-928-931-25 can be seen below.