The DSI1722 from DiTom Microwave is a RF & Microwave Isolator with Frequency 17.3 to 22 GHz, Average Power Forward 10 W, Average Power Reverse 2 W, Peak Power 30 W, Insertion Loss 0.5 dB. Tags: Module with Connectors, Coaxial Isolator. More details for DSI1722 can be seen below.