The TLHF-4G-18G-X from Talent Microwave Inc is a RF High Pass Filter with Frequency 4 to 18 GHz, Insertion Loss 1.5 dB, Power 10 W, Rejection >40 dB @DC to 3 GHz, VSWR 1.50:1. Tags: Module with Connectors. More details for TLHF-4G-18G-X can be seen below.