The DSC1722 from DiTom Microwave is a Space Qualified Circulator with Frequency 17.3 to 22 GHz, Average Power Forward 10 W, Peak Power Forward 30 W, Insertion Loss 0.6 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Circulator. More details for DSC1722 can be seen below.