The WBLB-T-BP-5000-2000-10C from A-Info is a Band Pass Filter with Frequency 4 to 6 GHz, Insertion Loss 1.5 dB, Rejection 30 dB, VSWR 1.80:1, Operating_Temperature -30 to 70 Degree C. Tags: Module with Connectors, Cavity Filter. More details for WBLB-T-BP-5000-2000-10C can be seen below.