The F6-R1213C01 from QUEST Microwave is a RF & Microwave Circulator with Frequency 13.2 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for F6-R1213C01 can be seen below.