The QBF-18000-26500-60 from Qualwave is a Band Pass Filter with Frequency 18 to 26.5 GHz, Bandwidth 8500 MHz, Center Frequency 22250 MHz, Insertion Loss 2 dB, Upper Rejection 60 dB @29.5 to 37 GHz. Tags: Module with Connectors. More details for QBF-18000-26500-60 can be seen below.