The WBLB-T-BP-8300-420/3-8C from A-Info is a Band Pass Filter with Frequency 8.09 to 8.51 GHz, Insertion Loss 2 dB, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WBLB-T-BP-8300-420/3-8C can be seen below.