The WBLB-T-BP-19750-1000-10C from A-Info is a Band Pass Filter with Frequency 19.25 to 20.25 GHz, Insertion Loss 1 dB, Rejection 30 dB, VSWR 1.50:1, Operating_Temperature -40 to 80 Degree C. Tags: Module with Connectors, Cavity Filter. More details for WBLB-T-BP-19750-1000-10C can be seen below.