The IS-190 from MCLI is a RF & Microwave Isolator with Frequency 3.7 to 8.2 GHz, Average Power Forward 20 W, Average Power Reverse 10 W, Insertion Loss 0.8 dB, Isolation 14 dB. Tags: Module with Connector, Coaxial Isolator. More details for IS-190 can be seen below.