The C1ZV1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.7 to 1.85 GHz, Average Power 10 W, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 28 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1ZV1 can be seen below.