The VCI-167186 from VidaRF is a RF & Microwave Isolator with Frequency 16.7 to 18.6 GHz, Average Power Forward 25 W, Insertion Loss 0.4 dB, Isolation 22 dB, Operating Temperature -54 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-167186 can be seen below.