The RFCR8706 from RF-CI is a RF & Microwave Circulator with Frequency 1.5 to 4 GHz, Average Power Forward 30 W, Average Power Reverse 50 W, Peak Power 500 W, Insertion Loss 0.8 to 1 dB. Tags: Drop-in Circulator. More details for RFCR8706 can be seen below.