The WBLB-T-BP-2300-400-L from A-Info is a Band Pass Filter with Frequency 2.1 to 2.5 GHz, Insertion Loss 2.5 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-2300-400-L can be seen below.