The VCI-185190 from VidaRF is a RF & Microwave Isolator with Frequency 18.5 to 19 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-185190 can be seen below.