The RFCR3308 from RF-CI is a RF & Microwave Circulator with Frequency 940 MHz to 1.2 GHz, Average Power Forward 200 W, Average Power Reverse 200 W, Peak Power 1000 W, Insertion Loss 0.50 to 0.60 dB. Tags: Coaxial Circulator. More details for RFCR3308 can be seen below.