The ZVBP-3100A-S+ from Mini Circuits is a Band Pass Filter with Frequency 3020 to 31800 MHz, Center Frequency 3100 MHz, Insertion Loss 1 to 1.5 dB, Upper Rejection 30 to 64 dB, Lower Rejection 30 to 65 dB. Tags: Module with Connectors, Cavity Filter. More details for ZVBP-3100A-S+ can be seen below.