The RFCR8914 from RF-CI is a RF & Microwave Circulator with Frequency 3.6 to 8.6 GHz, Average Power Forward 30 W, Average Power Reverse 50 W, Peak Power 500 W, Insertion Loss 0.6 to 0.7 dB. Tags: Drop-in Circulator. More details for RFCR8914 can be seen below.