The WRCFV8-438-450-458-470-70 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 450 to 458 MHz, Bandwidth 8 MHz, Insertion Loss 1 to 3 dB, Rejection 70 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCFV8-438-450-458-470-70 can be seen below.