The DVC1722 from DiTom Microwave is a RF & Microwave Circulator with Frequency 17.3 to 22 GHz, Average Power Forward 10 W, Peak Power 30 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for DVC1722 can be seen below.