The ZCI11S-6-18-20A from ZTS Technologies is a RF & Microwave Isolator with Frequency 6 to 18 GHz, Average Power Forward 20 W, Average Power Reverse 10 W, Insertion Loss 1.5 dB, Isolation 11 dB. Tags: Coaxial Isolator. More details for ZCI11S-6-18-20A can be seen below.