The ZBSS-2250-S+ from Mini Circuits is a Band Pass Filter with Frequency 1600 to 2900 MHz, Insertion Loss 2.5 to 3.5 dB, Upper Rejection 20 to 35 dB, Lower Rejection 20 to 50 dB, Power 3 W. Tags: Module with Connectors, Suspended Substrate Filter. More details for ZBSS-2250-S+ can be seen below.