The QHF-3000-18000-55 from Qualwave is a RF High Pass Filter with Frequency 3 to 18 GHz, Bandwidth 15000 MHz, Insertion Loss 1 to 2 dB, Power 15 W, Rejection 55 to 70 dB. Tags: Module with Connectors. More details for QHF-3000-18000-55 can be seen below.