The WRCGV12-3438-3445-3455-3462-40-2 from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 3.445 to 3.455 GHz, Bandwidth 10 MHz, Insertion Loss 2 to 3 dB, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WRCGV12-3438-3445-3455-3462-40-2 can be seen below.