The HPF-SS-4000-20-6000-18000-SF-SF from DETI Microwave is a RF High Pass Filter with Frequency 6 to 18 GHz, Bandwidth 12000 MHz, Insertion Loss 0.7 dB, Power 2 W, Rejection 20 to 40 dB. Tags: Module with Connectors, Suspended Substrate Filter. More details for HPF-SS-4000-20-6000-18000-SF-SF can be seen below.