The QHF-18000-40000-35 from Qualwave is a RF High Pass Filter with Frequency 18 to 40 GHz, Bandwidth 22000 MHz, Insertion Loss 2 dB, Rejection 35 dB, Lower Rejection 35 dB @ 17.5 GHz. Tags: Module with Connectors. More details for QHF-18000-40000-35 can be seen below.