The WBLB-T-BP-250-20-L from A-Info is a Band Pass Filter with Frequency 240 to 260 MHz, Insertion Loss 1.8 dB, Rejection 55 to 58 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-250-20-L can be seen below.