The VCI-190215 from VidaRF is a RF & Microwave Isolator with Frequency 19 to 21.5 GHz, Average Power Forward 25 W, Insertion Loss 0.5 dB, Isolation 21 dB, Operating Temperature -54 to 85 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-190215 can be seen below.