The RFCR6119B from RF-CI is a RF & Microwave Circulator with Frequency 700 MHz to 1 GHz, Average Power Forward 250 W, Average Power Reverse 250 W, Peak Power 2500 W, Insertion Loss 0.50 to 0.60 dB. Tags: Coaxial Circulator. More details for RFCR6119B can be seen below.