The C1FL1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.93 to 1.99 GHz, Average Power 100 W, Average Power Forward 100 W, Peak Power 500 W, Insertion Loss 0.3 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1FL1 can be seen below.