The WRCQV14-3050-3300-3800-4050-60SS from Wainwright Instruments is a Band Stop Filter with Stopband Frequency 3.3 to 3.8 GHz, Insertion Loss 1.25 to 1.5 dB, Rejection 60 dB, VSWR 1.67:1, Return Loss 12 dB. Tags: Module with Connectors, Cavity Filter, Notch Filter. More details for WRCQV14-3050-3300-3800-4050-60SS can be seen below.