The RFCR2912 from RF-CI is a RF & Microwave Circulator with Frequency 13.2 to 14.6 GHz, Average Power Forward 10 W, Average Power Reverse 25 W, Peak Power 250 W, Insertion Loss 0.35 to 0.4 dB. Tags: Drop-in Circulator. More details for RFCR2912 can be seen below.