The T1ZV3 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.85 to 2 GHz, Average Power 20 W, Average Power Forward 20 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1ZV3 can be seen below.