The WHJ8-90-100-40-1250-50 from Wainwright Instruments is a RF High Pass Filter with Frequency 90 / 100 MHz to 1.25 GHz, Insertion Loss 0.75 to 1.3 dB, Power 50 W, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHJ8-90-100-40-1250-50 can be seen below.