The QHF-5000-18000-50 from Qualwave is a RF High Pass Filter with Frequency 5 to 18 GHz, Bandwidth 13000 MHz, Insertion Loss 1 dB, Rejection 50 dB, Lower Rejection 50 dB @ DC to 4.2 GHz. Tags: Module with Connectors. More details for QHF-5000-18000-50 can be seen below.