The WHW2-10500-11000-40-18000-30 from Wainwright Instruments is a RF High Pass Filter with Frequency 10.5 / 11 GHz to 18 GHz, Insertion Loss 0.5 to 0.75 dB, Power 30 W, Rejection 40 dB, VSWR 1.67:1. Tags: Module with Connectors. More details for WHW2-10500-11000-40-18000-30 can be seen below.