The WBLB-T-BP-1399.5-317-L from A-Info is a Band Pass Filter with Frequency 1.241 to 1.558 GHz, Insertion Loss 1 dB, Rejection 35 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-1399.5-317-L can be seen below.