The CC-410-013 from RF & Noise Components is a RF & Microwave Circulator with Frequency 400 to 420 MHz, Average Power Forward 250 W, Insertion Loss 0.3 to 0.4 dB, Isolation 20 to 23 dB, Return Loss 20 to 23 dB. Tags: Coaxial Circulator. More details for CC-410-013 can be seen below.