The QBF-26000-40000-35 from Qualwave is a Band Pass Filter with Frequency 26 to 40 GHz, Bandwidth 14000 MHz, Center Frequency 33000 MHz, Insertion Loss 1.1 dB, Upper Rejection 35 to 80 dB. Tags: Module with Connectors. More details for QBF-26000-40000-35 can be seen below.