The T17C10 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 17.6 to 21.6 GHz, Average Power 10 W, Average Power Forward 10 W, Insertion Loss 0.5 dB, Isolation 25 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T17C10 can be seen below.