The WBLB-T-BP-2800-200-L from A-Info is a Band Pass Filter with Frequency 2.7 to 2.9 GHz, Insertion Loss 3.2 dB, Rejection 35 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-2800-200-L can be seen below.