The WHK10-100-120-40-2000-20 from Wainwright Instruments is a RF High Pass Filter with Frequency 100 / 120 MHz to 2 GHz, Insertion Loss 1.2 to 2.95 dB, Power 20 W, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHK10-100-120-40-2000-20 can be seen below.