The C1CF1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.2 to 1.6 GHz, Average Power 2 kW, Average Power Forward 2 kW, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1CF1 can be seen below.