The RFCR2910 from RF-CI is a RF & Microwave Circulator with Frequency 12.7 to 14.5 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 RFCR2910 can be seen below.