The QBF-2200-2800-30 from Qualwave is a Band Pass Filter with Frequency 2.2 to 2.8 GHz, Bandwidth 600 MHz, Center Frequency 2500 MHz, Insertion Loss 1 dB, VSWR 2.00:1. Tags: Module with Connectors. More details for QBF-2200-2800-30 can be seen below.