The QBF-33000-40000-85 from Qualwave is a Band Pass Filter with Frequency 33 to 40 GHz, Bandwidth 7000 MHz, Center Frequency 36500 MHz, Insertion Loss 1 to 1.4 dB, Upper Rejection 85 dB @42 to 54 GHz. Tags: Module with Connectors. More details for QBF-33000-40000-85 can be seen below.