The WBLB-T-BP-4500-1000-10C from A-Info is a Band Pass Filter with Frequency 4 to 5 GHz, Insertion Loss 0.5 dB, Rejection 48 to 48 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WBLB-T-BP-4500-1000-10C can be seen below.