The WRCFV8-3494.5-3497.5-3502.5-3505.5-35-5 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 3.4975 to 3.5025 GHz, Bandwidth 5 MHz, Insertion Loss 1.5 to 3.5 dB, Rejection 35 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCFV8-3494.5-3497.5-3502.5-3505.5-35-5 can be seen below.